# Value of expression 2

Execution time limit is 1 second

Runtime memory usage limit is 128 megabytes

Find the value of expression for the given values of the variables $x$ and $y$.

$x+5x_{2}−2xy+4y_{2} +y−73x_{2}−y_{2} $

## Input

Values of the variables $x$ and $y$.

## Output

Print the value of expression up to thousandths.

## Examples

Input #1

Answer #1

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