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 W,H;
	int i,j;
	
	while(scanf("%d %d",&H,&W)!=EOF)
	{
		if(H==0&&W==0)break;
		else
		{
			for(i=0;i<H;i++)
			{
				for(j=0;j<W;j++)
				{
					if(i==0||i==H-1||j==0||j==W-1)printf("#");
					else printf(".");
				}
				printf("\n");
			}
			printf("\n");
		}
	}
	return 0;
}