C131121333133313233213331333133313331333133313231333133323223311111   >>    C13112133313331323321333133313331333133313331323133313332322331111   <<    C131121333133313233213331333133313331333133313231333133323223311113   >>      C131121333133313233213331333133313331333133313231333133323223311112   >>