C11111333133313232233133313331333133313331311211331333133313331333131131212221   >>    C1111133313331323223313331333133313331333131121133133313331333133313113121222   <<    C11111333133313232233133313331333133313331311211331333133313331333131131212223   >>      C11111333133313232233133313331333133313331311211331333133313331333131131212222   >>