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.

Constraints

* 0 ≤ a, b ≤ 20000
* No divisions by zero are given.

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.

Example

Input

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0


Output

3
38
26
10
108
#include<stdio.h>
int main(){
	int a,b,x,i;
	char z;
	for(i=0;i<=100000;i++){
		scanf("%d %c %d",&a,&z,&b);
		if(z == '+'){x=a+b;};
		if(z == '-'){x=a-b;};
		if(z == '*'){x=a*b;};
		if(z == '/'){x=a/b;};
		if(z == '?'){break;};
		printf("%d\n",x);
		}
	return 0;}