C2221232323213331311331333133313231333132313231333113221321112221   >>    C222123232321333131133133313331323133313231323133311322132111222   <<    C2221232323213331311331333133313231333132313231333113221321112223   >>      C2221232323213331311331333133313231333132313231333113221321112222   >>