C2221232323213331311331333133313231333132313331333233113222332113123211   >>    C222123232321333131133133313331323133313231333133323311322233211312321   <<    C2221232323213331311331333133313231333132313331333233113222332113123213   >>      C2221232323213331311331333133313231333132313331333233113222332113123212   >>