/in/foo.c:1:1: error: unknown type name 'import'
    1 | import math
      | ^~~~~~
/in/foo.c:3:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'def'
    3 | def a(x):
      | ^~~
/in/foo.c:3:1: error: unknown type name 'def'
/in/foo.c:17:12: error: stray '#' in program
   17 |     else:  # x >= 25
      |            ^