解:
4個數字:
1314,1341,1134,1143,1413,1431,3114,3141,3411,4113,4131,4311
3個數字:
131,113,311,114,141,411,431,413,314,341
2個數字:
13,14,11,31,41,34,43
解:
4個數字:
1314,1341,1134,1143,1413,1431,3114,3141,3411,4113,4131,4311
3個數字:
131,113,311,114,141,411,431,413,314,341
2個數字:
13,14,11,31,41,34,43