private static int BozhoScore(HashSet<string> firstPicTags, HashSet<string> secondPicTags)
        {
            var intersection = new HashSet<string>(firstPicTags);

            intersection.IntersectWith(secondPicTags);

            var intersectionCount = intersection.Count;

            var firstDiffSecondCount = firstPicTags.Except(secondPicTags).Count();

            //Could probably add slight improvements. allCount - (intersect + firstDiff)
            var secondDiffFirstCount = secondPicTags.Except(firstPicTags).Count();

            return Math.Min(Math.Min(intersectionCount, firstDiffSecondCount), secondDiffFirstCount);
        }