C11111333133313232233133313331333133313231312111133131123313331213121   >>    C1111133313331323223313331333133313331323131211113313112331333121312   <<    C11111333133313232233133313331333133313231312111133131123313331213123   >>      C11111333133313232233133313331333133313231312111133131123313331213122   >>