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A:
(5555) - 1
(5512) 12 = 4!/2!=3*4
(5513) 12
(5524) 12
(5526) 12
(5534) 12
(5536) 12
(1122) 6 4!/(2!*2!)=2*3=6
(1133) 6
(2244) 6
(2246) 6
(2266) 6
(1234) 24 4!
(1236) 24
|A|=1+6*12+5*6+2*24=151
P(A)=151/1296
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