C11112331312111112111133132313331333133313233313331333132233132112131   >>    C1111233131211111211113313231333133313331323331333133313223313211213   <<    C11112331312111112111133132313331333133313233313331333132233132112133   >>      C11112331312111112111133132313331333133313233313331333132233132112132   >>