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 <iostream>
#include <stdio.h>
using namespace std;

int main()
{
int x,y;
char a;
for(int i=1;i<=10000;i++)
{cin >> x >> a >> y;
if(a=='+')
{cout << x+y << endl;}
else if(a=='-')
{cout << x-y << endl;}
else if(a=='*')
{cout << x*y << endl;}
else if(a=='/')
{cout << x/y << endl;}
}
return 0;
}

