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,c;
	char op;
	scanf("%d %c %d",&a,&op,&b);
	while(1){
		
		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 =='?') break;
	}
	return 0;
}