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 a, b, result;
	char op;

        while (1) {
                scanf("%d%d%c",&a,&b,&op);
		if (op == '?')break;
		if (op == '+')
			result = a + b;
		else if (op == '-')
			result = a - b;
		else if (op == '*')
			result = a*b;
		else if (op == '/')
			result = a / b;
	}
	
	printf("%d\n",result);
	return 0;
}