1-5 CAADA 6-10 BCCBD 11-15 DDBCC 16-20 DCDCC 21-25 ABDAA 26-30 BBBBA 31-35 DCCDC 36-40 ADABA

1-5: DBCAD 6-10 BDCDB 11-15 CDACB 16-20 ACCDA 21-25 BCDAB 26-30 CCABC 31-35 ABDAB 36-40 ABCDA

1-5 DCCDA 6-10 BCABC  11-15 CABCA 16-20 CDCDB

A: 1 7 10 15 18
B: 2 5 8 16 19 
C:3 9 12 17 20
1-5 ABCDB 6-10 DABCA 11-15 BCDDA 16-20 BCABC

1-5 ABCAD  6-10 AABDB 11-15 ADBAB   16-20 CDABD