C2221232323213331311331333133313231323133313121121132321333123311   >>    C222123232321333131133133313331323132313331312112113232133312331   <<    C2221232323213331311331333133313231323133313121121132321333123313   >>      C2221232323213331311331333133313231323133313121121132321333123312   >>