C11111333133313232233133313331333133313331311331333112113312111   >>    C1111133313331323223313331333133313331333131133133311211331211   <<    C11111333133313232233133313331333133313331311331333112113312113   >>      C11111333133313232233133313331333133313331311331333112113312112   >>