C222123232321333131133133313331323133313233311232313233232312112111   >>    C22212323232133313113313331333132313331323331123231323323231211211   <<    C222123232321333131133133313331323133313233311232313233232312112113   >>      C222123232321333131133133313331323133313233311232313233232312112112   >>