C11111333133313232233133313331333133313221333133313232212111133133322311   >>    C1111133313331323223313331333133313331322133313331323221211113313332231   <<    C11111333133313232233133313331333133313221333133313232212111133133322313   >>      C11111333133313232233133313331333133313221333133313232212111133133322312   >>