C11112331312111112111133132313331333133313233313331323222111111   >>    C1111233131211111211113313231333133313331323331333132322211111   <<    C11112331312111112111133132313331333133313233313331323222111113   >>      C11112331312111112111133132313331333133313233313331323222111112   >>