C1111233131211111211113313331333133313331333133313331333133313112112132333131   >>    C111123313121111121111331333133313331333133313331333133313331311211213233313   <<    C1111233131211111211113313331333133313331333133313331333133313112112132333133   >>      C1111233131211111211113313331333133313331333133313331333133313112112132333132   >>