#include<cstdio>
#include<math.h>
#include<string.h>
using namespace std;
int main()
{
    int a,b;
    char ch;
    while(scanf("%d %c %d",&a,&ch,&b)!=EOF)
    {
        if(ch=='+') printf("%d\n",a+b);
        else printf("%d\n",a-b);
    }
    return 0;
}