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A, B, M, N, P, Q.
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X5| 3=A+B+M
X4| 1=A-B+N
X3| 7=2A+2B+P
X2| 2=2A-2B+Q A=2, B=1, M=N=Q=0, P=1.
X |2=A+B-N-P
1 |1=A-B-N-Q
2 , .
X=1 | 16=8A
X= -1| -8=-8B
X=0 | 1=A-B-N-P
X=2 | 181=75A-25B+30M+15N+6P+3Q
X=-2 | -96= -25A-75B-30M+15N-6P+3Q
X=-3 | -824= -200A 400B-240M 80N 24P+8Q
, A=2, B=1, M=N=Q=0, P=1.
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X=0 | -1 = B-A-C
X=1 | 4 = A+B+2B+C+B-A-C= 4B
X=-1| -2 = A+B-2B-C+B-A-C= -2C. C=1, B=1, A=1.
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