C222123232321333131133133313331323133313231322132313121332112111   >>    C22212323232133313113313331333132313331323132213231312133211211   <<    C222123232321333131133133313331323133313231322132313121332112113   >>      C222123232321333131133133313331323133313231322132313121332112112   >>