#include <stdio.h>
int main(void){
float a, b;
char op;
while(scanf("%f %c %f", &a
, &op
, &b
)==3) printf("%f\n", op
=='*' ? a
*b
: op
=='/' ? a
/b
: 666.666);
printf("Propably (not for sure) you just mc\'fkd up something."); return 0;
}
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