54. Consider the negative situation, that is, all are new players, and there are 3*2* 1=6 situations. The overall situation is 5*4*3=60 situations. 60-6=54
22. Only consider the combination of AB ***6*5=30. The five types with A=0 are the same straight line, and the calculation is repeated four times, and the five types with B=0 are repeated four times. 30-4-4=22
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