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