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 Python (judge verdict: Accepted)

while 1 > 0:
    formula = raw_input()
    a, op, b = formula.split()
    if op == "?":
        break
    a = int(a)
    b = int(b)
    if op == "+":
        print a + b
    elif op == "-":
        print a - b
    elif op == "*":
        print a * b
    elif op == "/":
        print a / b