C22212323232133313113313331333133313231333112123221332131121111   >>    C2221232323213331311331333133313331323133311212322133213112111   <<    C22212323232133313113313331333133313231333112123221332131121113   >>      C22212323232133313113313331333133313231333112123221332131121112   >>