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(){
	
	for(; ;){
	
	int a,b;
	char op;
	printf("???????????´??°??¨???????????????????????\?????????????????????\n");
	scanf("%d%c%d ",&a,&op,&b);
	
	if(op=='?')
	    break;    
	
	switch(op){
		case '+':
			printf("%d",a+b);
			break;
		case '-':
			printf("%d",a-b);
			break;
		case '*':
			printf("%d",a*b);
			break;
		case '/':
			printf("%d",a/b);
			break;
	}
	}
	return 0;
	}