C22212323232133313113313331333132313331323132321111311332323111   >>    C2221232323213331311331333133313231333132313232111131133232311   <<    C22212323232133313113313331333132313331323132321111311332323113   >>      C22212323232133313113313331333132313331323132321111311332323112   >>