C131121333133313233213331333133313331333133313331333133313123223212111133321   >>    C13112133313331323321333133313331333133313331333133313331312322321211113332   <<    C131121333133313233213331333133313331333133313331333133313123223212111133323   >>      C131121333133313233213331333133313331333133313331333133313123223212111133322   >>