C131121333133313233213331333133313331333133313331333133313121111132131121   >>    C13112133313331323321333133313331333133313331333133313331312111113213112   <<    C131121333133313233213331333133313331333133313331333133313121111132131123   >>      C131121333133313233213331333133313331333133313331333133313121111132131122   >>