C11111333133313232233133313331333133313221333133313231121211211311   >>    C1111133313331323223313331333133313331322133313331323112121121131   <<    C11111333133313232233133313331333133313221333133313231121211211313   >>      C11111333133313232233133313331333133313221333133313231121211211312   >>