10
cdefgab
BAGFEDC
CbCaDCbCbCCbCbabCCbCbabae

A
b
AbbCcDeeGggGbBaaCABCDEFGabcdefg
bagabbcdefBCAbCDeFFg
gfedc
bagabbcdefBCAbCDeFFgeeGggGbBaaCABCAbCDeFFgaDCbCbCCbCbabCCbGggGbBaaCABCDEFGCAbCDeFFgFFgaDCbCbCCbCbabCGbBaaCABCAbCBAGFEDC