#P64B. Expression

    ID: 2057 Type: RemoteJudge 2000ms 64MiB Tried: 0 Accepted: 0 Difficulty: (None) Uploaded By: Tags>*special problemexpression parsing*1500

Expression

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Description

You are given a line «n#m», where «n» and «m» are digits, and «#» is a sign «+» or «-». Print the value of the given expression.

The only given line has a string in form «n#m», where «n» and «m» are digits (from 0 to 9), and «#» is a sign «+» or «-».

Print the value of the given expression.

Input

The only given line has a string in form «n#m», where «n» and «m» are digits (from 0 to 9), and «#» is a sign «+» or «-».

Output

Print the value of the given expression.

Samples

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