1. Ababc
2. Abcaa
3. Accab
4. Bacaa
Ababc
1. Bbcaa
2. Bcbca
3. Cabac
4. Cbbac
Cbbac
1. Acbaa
2. Bbcaa
3. Bccab
4. Cbaac
Acbaa
1. Abdca
2. Bcadc
3. Abcdd
4. Cbdaa
Abdca
1. Bdbda
2. Bddca
3. Dbbca
4. Bbdac
Bbdac
1. Sbcda
2. Abdbc
3. Abdcb
4. Abcad
Abdcb
1. Aaaaa
2. Ccccc
3. Bbbbb
4. Ddddd
Aaaaa
1. Bccba
2. Cbbaa
3. Ccbba
4. Bbcad
Cbbaa
1. Aabcb
2. Abccb
3. Abacb
4. Bacbb
Abccb
1. Acaa
2. Acba
3. Cabc
4. Cacc
Cabc