C22212323232133313113313331333132313331323132321111312313133111   >>    C2221232323213331311331333133313231333132313232111131231313311   <<    C22212323232133313113313331333132313331323132321111312313133113   >>      C22212323232133313113313331333132313331323132321111312313133112   >>