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;
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 {
break;
}
}
return 0;
}