第一期：ABC
第二期：DEF
第三期：GHK
第四期：XYZ
(A+D+G)尾数=X
(B+E+H)尾数=Y
(C+F+K)尾数=Z
(A+B)尾数+(D+E)尾数+(G+H)尾数=(X+Y)尾数
(A+C)尾数+(D+F)尾数+(G+K)尾数=(X+Z)尾数
(B+C)尾数+(E+F)尾数+(H+K)尾数=(Y+Z)尾数
(A-B)尾数+(D-E)尾数+(G-H)尾数=(X-Y)尾数
(A-C)尾数+(D-F)尾数+(G-K)尾数=(X-Z)尾数
(B-C)尾数+(E-F)尾数+(H-K)尾数=(Y-Z)尾数
条件:ABCDEFGHKXYZ为0-9整数，求解ABCDEFGHKXYZ数值？有很多解吗？