C1111133313331323223313331333133313331333132213331333133313133313231121   >>    C111113331333132322331333133313331333133313221333133313331313331323112   <<    C1111133313331323223313331333133313331333132213331333133313133313231123   >>      C1111133313331323223313331333133313331333132213331333133313133313231122   >>