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;
	char op;
	int b;
	int c;
	int d;

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

	 return 0;
}