120%AC

#include<stdio.h>
#define int long long int
int jisuan(int a,char c,int b){
    int ans;
    switch(c){
        case '+':ans=a+b;break;
        case '-':ans=a-b;break;
        case '*':ans=a*b;break;
        case '/':ans=a/b;break;
        case '%':ans=a%b;break;
    }
    return ans;
}
signed main(){
    int a,b;char c;
    scanf("%lld %c %lld",&a,&c,&b);
    printf("%lld",jisuan(a,c,b));
}