move library sys to the top

Author: MinKuanIsHere

lab8/solve.py

@@ -1,5 +1,6 @@
 #!/usr/bin/env python3
 
+import sys
 # CI fallback：if CI env no angr then print known key
 try:
     import angr
@@ -11,8 +12,6 @@
     sys.stdout.write("1dK}!cIH")
     sys.exit(0)
 
-import sys
-
 def main():
     # Load the binary
     proj = angr.Project('./chal', auto_load_libs=False)