C222123232321333131133133313331323133313231323213113331333212121   >>    C22212323232133313113313331333132313331323132321311333133321212   <<    C222123232321333131133133313331323133313231323213113331333212123   >>      C222123232321333131133133313331323133313231323213113331333212122   >>