C11111333133313232233133313331333133313231313131211111133132313131   >>    C1111133313331323223313331333133313331323131313121111113313231313   <<    C11111333133313232233133313331333133313231313131211111133132313133   >>      C11111333133313232233133313331333133313231313131211111133132313132   >>