C2221232323213331311331333133313231333132313232131133311231312231   >>    C222123232321333131133133313331323133313231323213113331123131223   <<    C2221232323213331311331333133313231333132313232131133311231312233   >>      C2221232323213331311331333133313231333132313232131133311231312232   >>