C1111233131211111211113313331333133313331322322331312111112132333131   >>    C111123313121111121111331333133313331333132232233131211111213233313   <<    C1111233131211111211113313331333133313331322322331312111112132333133   >>      C1111233131211111211113313331333133313331322322331312111112132333132   >>