Unnamed

    def find_smallest_n(i : Int, s : Iterator[Char]) = {        val dna_i = dna drop (i + 1);		val postfix = s.toList		var n = i - 1;		def find_n(d : Iterator[Char]) : Unit = {			d dropWhile { a => n += 1; a != postfix(0) }			if (!(d.buffered startsWith postfix)) {				n += 1				find_n(d drop 1)			}		}		find_n(dna_i)		if (n == i - 1 || !(dna hasNext)) None else Some(n)    }