C22212323232133313113313331333132313331323132321111311131112221   >>    C2221232323213331311331333133313231333132313232111131113111222   <<    C22212323232133313113313331333132313331323132321111311131112223   >>      C22212323232133313113313331333132313331323132321111311131112222   >>