C11111333133313232233133313331333133313233231331121111331211331333112111   >>    C1111133313331323223313331333133313331323323133112111133121133133311211   <<    C11111333133313232233133313331333133313233231331121111331211331333112113   >>      C11111333133313232233133313331333133313233231331121111331211331333112112   >>