C22212323232133313113313331333132313331323133313331213132321111323331   >>    C2221232323213331311331333133313231333132313331333121313232111132333   <<    C22212323232133313113313331333132313331323133313331213132321111323333   >>      C22212323232133313113313331333132313331323133313331213132321111323332   >>