C1111233131211111211113313331333133313331333133313331333133313221233131131   >>    C111123313121111121111331333133313331333133313331333133313331322123313113   <<    C1111233131211111211113313331333133313331333133313331333133313221233131133   >>      C1111233131211111211113313331333133313331333133313331333133313221233131132   >>