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[2026春季][T1-2-1] Final benchmark results: mask 2->0, stride 2->0, GPU verified All metrics now show clear specialization improvements: mask_complexity reduction = 100% (divisible tile fast path) stride_expr_count reduction = 100% (contiguous fast path) pointer_expr_count = stable (pointers always needed) Fallback scenarios: all metrics identical to baseline. @
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‎benchmarks/bench_specialization_results.json‎

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{
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{
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"benchmark_name": "T1-2-1 Specialization",
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"timestamp": "2026-06-12 09:29:13",
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"timestamp": "2026-06-12 09:37:55",
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"device": "cuda",
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"results": [
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{
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"scenario": "contiguous_divisible_hit",
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"size": 2048,
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"variant_name": "contiguous_divisible_fast",
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"baseline_runtime_ms": 0.0178,
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"baseline_runtime_ms": 0.0183,
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"submitted_runtime_ms": 0.0182,
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"speedup": 0.9754,
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"speedup": 1.0056,
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"specialization_hit": true,
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"baseline_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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},
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"submitted_metrics": {
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"mask_complexity": 0,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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}
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"baseline_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 2, "pointer_expr_count": 2, "source_line_count": 14 },
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"submitted_metrics": { "mask_complexity": 0, "mask_expr_count": 2, "stride_expr_count": 0, "pointer_expr_count": 2, "source_line_count": 14 }
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},
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{
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"scenario": "contiguous_only_hit",
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"size": 1027,
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"variant_name": "contiguous_fast",
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"baseline_runtime_ms": 0.0174,
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"submitted_runtime_ms": 0.0175,
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"speedup": 0.9921,
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"baseline_runtime_ms": 0.0178,
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"submitted_runtime_ms": 0.018,
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"speedup": 0.9886,
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"specialization_hit": true,
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"baseline_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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},
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"submitted_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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}
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"baseline_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 2, "pointer_expr_count": 2, "source_line_count": 14 },
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"submitted_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 0, "pointer_expr_count": 2, "source_line_count": 14 }
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},
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{
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"scenario": "divisible_only_hit",
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"size": 2048,
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"variant_name": "divisible_fast",
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"baseline_runtime_ms": 0.0175,
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"submitted_runtime_ms": 0.0176,
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"speedup": 0.9967,
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"baseline_runtime_ms": 0.0176,
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"submitted_runtime_ms": 0.0179,
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"speedup": 0.9849,
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"specialization_hit": true,
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"baseline_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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},
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"submitted_metrics": {
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"mask_complexity": 0,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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}
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"baseline_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 2, "pointer_expr_count": 2, "source_line_count": 14 },
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"submitted_metrics": { "mask_complexity": 0, "mask_expr_count": 2, "stride_expr_count": 2, "pointer_expr_count": 2, "source_line_count": 14 }
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},
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{
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"scenario": "pure_fallback",
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"size": 1027,
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"variant_name": "general_fallback",
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"baseline_runtime_ms": 0.0174,
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"submitted_runtime_ms": 0.0174,
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"speedup": 0.9966,
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"baseline_runtime_ms": 0.0176,
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"submitted_runtime_ms": 0.0176,
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"speedup": 0.997,
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"specialization_hit": false,
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"baseline_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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},
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"submitted_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 2,
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"pointer_expr_count": 0,
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"source_line_count": 14
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}
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"baseline_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 2, "pointer_expr_count": 2, "source_line_count": 14 },
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"submitted_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 2, "pointer_expr_count": 2, "source_line_count": 14 }
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},
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{
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"scenario": "2d_divisible_hit",
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"size": "(512, 512)",
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"baseline_runtime_ms": 0.0199,
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"submitted_runtime_ms": 0.02,
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"speedup": 0.9954,
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"baseline_runtime_ms": 0.0205,
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"submitted_runtime_ms": 0.0203,
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"speedup": 1.0097,
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"specialization_hit": true,
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"baseline_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 4,
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"pointer_expr_count": 0,
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"source_line_count": 16
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},
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"submitted_metrics": {
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"mask_complexity": 0,
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"mask_expr_count": 2,
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"stride_expr_count": 4,
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"pointer_expr_count": 0,
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"source_line_count": 16
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}
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"baseline_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 4, "pointer_expr_count": 2, "source_line_count": 16 },
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"submitted_metrics": { "mask_complexity": 0, "mask_expr_count": 2, "stride_expr_count": 4, "pointer_expr_count": 2, "source_line_count": 16 }
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},
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{
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"scenario": "2d_non_divisible_fallback",
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"size": "(519, 519)",
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"baseline_runtime_ms": 0.02,
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"submitted_runtime_ms": 0.0198,
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"speedup": 1.009,
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"baseline_runtime_ms": 0.0199,
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"submitted_runtime_ms": 0.0199,
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"speedup": 0.9975,
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"specialization_hit": false,
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"baseline_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 4,
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"pointer_expr_count": 0,
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"source_line_count": 16
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},
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"submitted_metrics": {
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"mask_complexity": 2,
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"mask_expr_count": 2,
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"stride_expr_count": 4,
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"pointer_expr_count": 0,
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"source_line_count": 16
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}
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"baseline_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 4, "pointer_expr_count": 2, "source_line_count": 16 },
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"submitted_metrics": { "mask_complexity": 2, "mask_expr_count": 2, "stride_expr_count": 4, "pointer_expr_count": 2, "source_line_count": 16 }
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}
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],
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"summary": {
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"total_scenarios": 6,
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"specialization_hit_scenarios": 4,
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"fallback_scenarios": 2
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}
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"summary": { "total_scenarios": 6, "specialization_hit_scenarios": 4, "fallback_scenarios": 2 }
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}

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