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)

while True:
	s = input().rstrip().split(' ')
	a = int(s[0])
	b = int(s[2])
	op = s[1]
	if op == "?":
		break
	elif op == "+":
		print(str(a + b))
	elif op == "-":
		print(str(a - b))
	elif op == "*":
		print(str(a * b))
	elif op == "/":
		print(str(int(a / b)))