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,c[2000],i,j;
	char op;
	i=0;
	while(1)
	{
		scanf("%d%c%d",&a,&op,&b);
		if(op=='?')
		{
		break;
		}
		else if(op=='+')
		{
			c[i]=a+b;
		}
		else if(op=='-')
		{
			c[i]=a-b;
		
		}
		else if(op=='*')
		{
			c[i]=a*b;
		
		}
		else if(op=='/')
		{
			c[i]=a/b;
		}
		i++;
	}

	for(j=0;j<i;j++)
	{
		printf("%d\n",c[j]);
	}
	
	return 0;	
}