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(void) {

	int a, b;
	int op;
	int ans;	
	scanf("%d %c %d", &a, &op, &b);
	while (1) {
		
		
		
		if(op == '+'){
			ans = a + b;
		}

		else if (op == '-') {
			ans = a - b;
		}
		else if (op == '*') {
			ans = a * b;
		}

		else if(op == '/') {
			ans = a / b;
		}
		
		
		else if (op == '?') 
			break;
				
	}

	printf("%d\n", ans);

	return(0);

}