Problem #PRU-100328

Problems Algebra Arithmetic operations. Number identities Number theory. Divisibility Odd and even numbers

Problem

The four numbers 1, 1, 1, 2 are written on a piece of paper. Alice and the Hatter are playing a game. They add in turns 1 to any two numbers to make the new four numbers. The winner is the one to make all the four numbers equal. If Alice goes first, who will win, if any?