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())
 ^
foo.c:7:7: warning: multi-character character constant [-Wmultichar]
 print('%.2f'%s)
       ^~~~~~

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