#include <stdlib.h>
#include <stdio.h>
#include <iostream>
using namespace std;

int c = 0;

class mat
{
    public:
    char ch;
    int a, b;
    void oper (int a, char ch, int b)
    {
        switch (ch)
        {
            case '+':
                c = a + b;
                break;
            case '-':
                c = a - b;
                break;
            case '*':
                c = a * b;
                break;
            case '%':
                c = a % b;
                break;
        }
    }
};

int main()
{
    mat z;
    int a, b;
    char ch;
    cin >> a >> ch >> b;
    z.oper(a, ch, b);
    cout << c;
    int t = 0;
    while (ch != 'C')
    {
        t++;
        cin >> ch >> b;
        if (ch == 'C')
            break;
        else
        {
            z.oper (c, ch, b);
            if (t%3 == 0)
                cout << endl << c ;
        }
    }

    return(0);
}