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;
char x;

scanf("%d %c %d",&a,&x,&b);

if(x != '?'){
while(x != '?'){
if(x == '+')
printf("%d\n",a + b);
if(x == '-')
printf("%d\n",a - b);
if(x == '*')
printf("%d\n",a * b);
if(x == '/')
printf("%d\n",a / b);

scanf("%d %d %d",&a,&x,&b);
}
}
return 0;
}