#include <iostream>
using namespace std;

int sum(int a, int b)
{
    int c=a+b;
    return c;
}

int sub(int a, int b)
{
    int c=a-b;
    return c;
}
float mult(int a, int b)
{
    int c=a*b;
    return c;
}
float div(int a, int b)
{
    int c=a/b;
    return c;
}

int main ()
{
    int x,y,q;
    char zn;
    cin >> x >> zn >> y;
    switch(zn)
    {
        case '+' :
        	q = sum( x, y );
        break;
        case '-' :
        	q = sub( x, y );
        break;
        case '*' :
        	q = mult( x, y );
        break;
        case '/' :
        	q = div( x, y );
        break;
    }
    cout << q; 
}