C11111333133313232233133313331333133313331312111133133313112122131   >>    C1111133313331323223313331333133313331333131211113313331311212213   <<    C11111333133313232233133313331333133313331312111133133313112122133   >>      C11111333133313232233133313331333133313331312111133133313112122132   >>