foo.c:1:1: error: unknown type name 'import'; did you mean 'short'?
 import math
 ^~~~~~
 short
foo.c:2:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'a'
 a=int(input())
 ^

自豪的采用HydroJudge(https://github.com/hydro-dev/Hydro)进行评测。