C11111333133313232233133313331333133313231313131211113313331333132223123131   >>    C1111133313331323223313331333133313331323131313121111331333133313222312313   <<    C11111333133313232233133313331333133313231313131211113313331333132223123133   >>      C11111333133313232233133313331333133313231313131211113313331333132223123132   >>