Problem:
Simple Calculator

Write a program which reads two integers a, b and an operator op, and then prints the value of a op b.

The operator op is '+', '-', '*' or '/' (sum, difference, product or quotient). The division should truncate any fractional part.

Input

The input consists of multiple datasets. Each dataset is given in the following format.

a op b

The input ends with a dataset where op = '?'. Your program should not process for this dataset.

Output

For each dataset, print the value in a line.

Constraints

0 ≤ a, b ≤ 20000

No divisions by zero are given.

Sample Input 1

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0

Sample Output 1

3
38
26
10
108

Solution in C (judge verdict: Time Limit Exceeded)

#include <stdio.h>

int main(int argc, const char * argv[])
{
    int firnum,secnum,ans;
    char calc;
    while(1){
        scanf("%d %c %d",&firnum,&calc,&secnum);
        
        if(calc == "+"){
            printf("%d\n",firnum + secnum);
            continue;
        }
        if(calc == "-"){
            printf("%d\n",firnum - secnum);
            continue;
        }
        if(calc == "*"){
            printf("%d\n",firnum * secnum);
            continue;
        }
        if(calc == "/"){
            printf("%d\n",firnum / secnum);
            continue;
        }
        if(calc == "?"){
        }else{
            continue;
        }
        break;

    }
    
    return 0;
}