C22212323232133313113313331333132313331323132321111313223113321   >>    C2221232323213331311331333133313231333132313232111131322311332   <<    C22212323232133313113313331333132313331323132321111313223113323   >>      C22212323232133313113313331333132313331323132321111313223113322   >>