C131121333133313233213331333133313331312111133133313331323311331321   >>    C13112133313331323321333133313331333131211113313331333132331133132   <<    C131121333133313233213331333133313331312111133133313331323311331323   >>      C131121333133313233213331333133313331312111133133313331323311331322   >>