Square Area

Make a program for an integerLL and print the area of a LL side square.

Input

The input consists of a line containing an integer LL.

Output

The output consists of a line containing the area of the LL side square.

Constraints

  • The given integers have no value greater than 1000 or less than 1
Input Samples Output Samples
1
1
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4
3
9
Translated by Daniel Hosomi