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)

lis = []
while True:
    a = [i for i in input().split()]
    if a[1] == "?":
        break
    else:
        lis.append(a)

for i in lis:
    if i[1] == "+":
        print(int(i[0]) + int(i[2]))
    elif i[1] == "-":
        print(int(i[0]) - int(i[2]))
    elif i[1] == "*":
        print(int(i[0]) * int(i[2]))
    elif i[1] == "/":
        print(int(i[0]) // int(i[2]))