Expression
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
1-5
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