C22212323232133313113313331333132313331323132321111311221232223211   >>    C2221232323213331311331333133313231333132313232111131122123222321   <<    C22212323232133313113313331333132313331323132321111311221232223213   >>      C22212323232133313113313331333132313331323132321111311221232223212   >>