foo.c:1:1: error: unknown type name 'import'
    1 | import math
      | ^~~~~~
foo.c:2:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'print'
    2 | print(max(0,int(input())-math.ceil((1/int(input()))*int(input()))))
      | ^~~~~

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