C11111333133313232233133313331333133313231312111133132311212112111   >>    C1111133313331323223313331333133313331323131211113313231121211211   <<    C11111333133313232233133313331333133313231312111133132311212112113   >>      C11111333133313232233133313331333133313231312111133132311212112112   >>