C222123232321333131133133313331323133313231322132313121332322321   >>    C22212323232133313113313331333132313331323132213231312133232232   <<    C222123232321333131133133313331323133313231322132313121332322323   >>      C222123232321333131133133313331323133313231322132313121332322322   >>