#include<stdio.h>

 #include<cstdio>

 #include<cmath>

 #include<cstring>

 #include<iostream>

 #include<algorithm>

 using namespace std;

 int main()

 {

     int a,b;char c;

     scanf("%d%c%d",&a,&c,&b);

     if(c=='+')

         printf("%d\n",a+b);

     else if(c=='-')

         printf("%d\n",a-b);

     else if(c=='*')

         printf("%d\n",a*b);

     else if(c=='/')

         printf("%d\n",a/b);

     return ;

 }