C222133313331333131123313231333133313331333133313331333133313113313331323332211   >>    C22213331333133313112331323133313331333133313331333133313331311331333132333221   <<    C222133313331333131123313231333133313331333133313331333133313113313331323332213   >>      C222133313331333131123313231333133313331333133313331333133313113313331323332212   >>