C222123232321333131133133313331323133313233311232313233232312112231   >>    C22212323232133313113313331333132313331323331123231323323231211223   <<    C222123232321333131133133313331323133313233311232313233232312112233   >>      C222123232321333131133133313331323133313233311232313233232312112232   >>