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)

import math
x=[]
i=0
while 1:
    l=input().split()
    a=int(l[0])
    b=int(l[2])
    op=str(l[1])

    if op=="?":
        break
    elif op=="/":
        if b==0:
            pass
        else:
            x.append(math.floor(eval(str(a)+op+str(b))))
            i=i+1
    else:
        x.append(eval(str(a)+op+str(b)))
        i=i+1

m=0
while m<i:
    print(x[m])
    m=m+1