I need the source code of an Android app that has:

Nim is a mathematical game of strategy in which two players take turns removing objects from distinct heaps. On each turn, a player must remove at least one object, and may remove any number of objects provided they all come from the same heap. The goal of the game is to avoid being the player who must remove the last object. (It can also be played with the winning player taking the last object.) The assignment is to create a nim game which initially displays 4 columns of 1, 3, 5 and 7 objects respectively. The game should permit/require each player, in turn, to remove as many objects as he likes (at least one) but from only one column. Your game should initially offer the option to be played so that the last player wins or last player loses.