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Rock, Paper, Scissors is sometimes used to reach a
decision. Two players count to three as they pound
one fist into the other, and then each extends a hand
in the shape of one of three symbols: scissor (two finger
“V”), paper (flat hand), or rock (closed fist).
These rules determine the winner: 1) scissor cuts
paper; 2) paper covers rock; 3) rock breaks scissor.
What is the main idea?
What is to explain how to play rock, paper, scissors?