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;
 char c;
 while(1){ 
  scanf("%d %c %d",&a,c,&b);
  if(c=="+"){
   printf("%d\n",(a+b));
  }else if(c=="-"){
   printf("%d\n",(a-b));
  }else if(c=="*"){
   printf("%d\n",(a*b));
  }else if(c=="/"){
   printf("%d\n",(a/b));
  }else if(c=="?"){
   break;
  }
 }
 return 0;
}