1234,1243
1324,1342
1432,1423
2134,2143
2341,2314
2431,2413
3241,3214
3124,3142
3412,3421
4321,4312
4231,4213
4123,4132
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Answers & Comments
1234,1243
1324,1342
1432,1423
2134,2143
2341,2314
2431,2413
3241,3214
3124,3142
3412,3421
4321,4312
4231,4213
4123,4132