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Mahjong formula: n*AAA+m*ABC+DD wins, and mn can be equal to 0. Explain 1, n, m, mn what?
1, m+n=4, when m is 1, n is 3, when m is 2, n is 2, and so on.

2.ABC is straight.

3.DD is any pair.

N*AAA+m*ABC+p*DD= 14, and one or both of M and N can be 0, but if one of M and N is not 0, p= 1, and if both M and N are 0, p=7 (to prevent "xianggong").

Mahjong master *** 14.

M and n coefficients, AAA stands for the same three, and ABC stands for three consecutive ones. DD stands for two identical ones. So there is a way to combine cards, when m=0, n=4 plus DD, or m= 1, n=3 plus DD, or m=2, n=2 plus DD, or m=3, n= 1 plus DD.