C222123232321333131133133313331323133313231323211113132322211311   >>    C22212323232133313113313331333132313331323132321111313232221131   <<    C222123232321333131133133313331323133313231323211113132322211313   >>      C222123232321333131133133313331323133313231323211113132322211312   >>