KGS math club/solution 11 12
It is impossible.
For any two colours, say red and green, r-g modulo 3 cannot change. The initial position (modulo 3) is 1,0,2 and the target is 0,0,x (in any order), which is unattainable.
It is impossible.
For any two colours, say red and green, r-g modulo 3 cannot change. The initial position (modulo 3) is 1,0,2 and the target is 0,0,x (in any order), which is unattainable.
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