Today's challenge is deceptively simple. Square a number. Given the input of an integer, output that integer multiplied by itself.

E.g.

square(3);
//output: 9
square(15);
//output: 225

Of course, I only want to see the worst ways to do this. Don't hold back. Make the compiler beg for mercy! You might find inspiration in the Wikipedia article on squaring.

Tests

square(4) == 16;
square(16) == 256;
square(51) == 2601;