#include<stdio.h> int main() { int a, b; char op; scanf ("%d%d %c", &a, &b, &op); if (op == '+'){printf ("%d\n", a+b);} else if (op == '-'){printf ("%d\n", a-b);} else if (op == '*'){printf ("%d\n", a*b);} else if (op == '/'){printf ("%d\n", a/b);} return 0; }