int longest = 0;
            foreach (var p in packingDict.Keys)
            {
                int c = packingDict[p].Count;
                longest = c > longest ? c : longest;
            }

            for (int i = 0; i < longest; i++)
            {
                string line = "";

                foreach (var p in packingDict.Keys)
                {
                    if (packingDict[p].Count > i)
                    {
                        line += packingDict[p][i];
                    }

                    line += ';';
                }
            }