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)

#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#include <math.h>
int main(void) {
	int a, b, c; char ch;
	while (1){
		scanf("%d %c %d", &a, &ch, &b);
		if (a == 0 && b == 0) break;
		if (ch == '+') c = a + b;
		else if (ch == '-') c = a - b;
		else if (ch == '*') c = a*b;
		else if (ch == '/') c = a / b;
		printf("%d\n", c);
	}
	return 0;
}