C11111333133313232233133313331333133313331312111133133313222333131   >>    C1111133313331323223313331333133313331333131211113313331322233313   <<    C11111333133313232233133313331333133313331312111133133313222333133   >>      C11111333133313232233133313331333133313331312111133133313222333132   >>