#include<stdio.h>

int main() {
    int a,b;
    char d;
    scanf("%d %c %d",&a,&d,&b);
    
    switch (d)
    {   
        case '+': printf("%d",a + b);break;
        case '-': printf("%d",a - b);break;
        case '*': printf("%d",a * b);break;
        case '/': printf("%f",a * 1.0 / b);break;
        case '%': printf("%d",a % b);break;
        
    }
    
    return 0;
}