Started with MMMM.
Tried MMSS.
Try MDMD
The response was...
4 Incorrect ---> Try DMDM
3 Incorrect, 1 Unknown ---> Try DMFM ---> 2 Incorrect, 2 Agreed ---> Try FMDM
2 Incorrect, 1 Agreed, 1 Unknown ---> Try DMMF
2 Incorrect, 2 Agreed ---> Try MDDM ---> 4 Incorrect ---> Try DMMD
2 Incorrect, 2 Unknown ---> Try FMFM
1 Incorrect, 1 Agreed, 2 Unknown ---> Try MFFM ---> 4 Incorrect ---> Try FMMF
1 Incorrect, 2 Agreed, 1 Unknown
2 Agreed, 2 Unknown ---> Try MFMF
3 Agreed, 1 Unknown ---> Try MDMF ---> 2 Incorrect, 2 Agreed ---> Try MFMD
Clear
Start Over