C222123232321333131133133313331323133313233311232313233232312121111   >>    C22212323232133313113313331333132313331323331123231323323231212111   <<    C222123232321333131133133313331323133313233311232313233232312121113   >>      C222123232321333131133133313331323133313233311232313233232312121112   >>