C131121333133313233213331333133313331312111133133313331312111133132231131   >>    C13112133313331323321333133313331333131211113313331333131211113313223113   <<    C131121333133313233213331333133313331312111133133313331312111133132231133   >>      C131121333133313233213331333133313331312111133133313331312111133132231132   >>