C222133313331333131123313231333133313331333132112323133313232233132323232311   >>    C22213331333133313112331323133313331333133313211232313331323223313232323231   <<    C222133313331333131123313231333133313331333132112323133313232233132323232313   >>      C222133313331333131123313231333133313331333132112323133313232233132323232312   >>