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.

Constraints

• 0 ≤ a, b ≤ 20000
• No divisions by zero are given.

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.

Example

Input

1 + 2 56 - 18 13 * 2 100 / 10 27 + 81 0 ? 0

Output

3 38 26 10 108

inputFormat

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.

outputFormat

Output

For each dataset, print the value in a line.

Example

Input

1 + 2 56 - 18 13 * 2 100 / 10 27 + 81 0 ? 0

Output

3 38 26 10 108

样例

1 + 2
56 - 18
13 * 2
100 / 10
27 + 81
0 ? 0

3
38
26
10
108

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