C11112331312111112111133132313331333133313233313331333132233133323112111   >>    C1111233131211111211113313231333133313331323331333133313223313332311211   <<    C11112331312111112111133132313331333133313233313331333132233133323112113   >>      C11112331312111112111133132313331333133313233313331333132233133323112112   >>