C11111333133313232233133313331333133313331312111133133322331312311   >>    C1111133313331323223313331333133313331333131211113313332233131231   <<    C11111333133313232233133313331333133313331312111133133322331312313   >>      C11111333133313232233133313331333133313331312111133133322331312312   >>