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 Python3 (judge verdict: Accepted)

# coding: utf-8
# Your code here!
# ITP1_4_C


while(True):
    x,k,y=input().split()
    x=int(x)
    y=int(y)
    if k=='?':
        break
    else:
        if k=='+':
            print(x+y)
        elif k=='-':
            print(x-y)
        elif k=='*':
            print(x*y)
        elif k=='/':
            print(int(x/y))