C222133313331333131123313231333133313331313113313331333121112121   >>    C22213331333133313112331323133313331333131311331333133312111212   <<    C222133313331333131123313231333133313331313113313331333121112123   >>      C222133313331333131123313231333133313331313113313331333121112122   >>