public class Solution

    {

        public IList<IList<string>> GroupAnagrams(string[] strs)

        {

            var L = new List<IList<string>>();

            var T = new List<KeyValuePair<string, int>>();

            for (var i = ; i < strs.Length; i++)

            {

                var list = new List<char>();

                var str = strs[i];

                foreach (var c in str)

                {

                    list.Add(c);

                }

                list = list.OrderBy(x => x).ToList();

                var temp = "";

                foreach (var c in list)

                {

                    temp += c;

                }

                T.Add(new KeyValuePair<string, int>(temp, i));

            }

            var G = T.GroupBy(x => x.Key).ToList();

            foreach (var g in G)

            {

                var K = new List<string>();

                foreach (var i in g)

                {

                    K.Add(strs[i.Value]);

                }

                L.Add(K);

            }

            return L;

        }

    }