using System;
using System.Collections.Generic;
using static Assistant.Input;
using System.Linq;
using Assistant;

namespace Temp20200521
{
    class Program
    {
        static void Main(string[] args)
        {
            int N = ReadInt;
            int M = ReadInt;

            int[] a = new int[M];
            int[] b = new int[M];
            int[][] c = new int[M][];
            for (int i = 0; i < M; i++)
            {
                a[i] = ReadInt;
                b[i] = ReadInt;
                c[i] = ReadInts.Select(x => x - 1).ToArray();
            }

            //bitDP
            int[,] dp = new int[1 << N, M];//頂点
            for (int i = 0; i < 1 << N; i++)
            {
                for (int j = 0; j < M; j++)
                {
                    dp[i, j] = int.MaxValue / 2;
                }
                if (i == 0) dp[i, 0] = 0;
            }

            for (int i = 0; i < (1 << N); i++)
            {
                for (int j = 0; j < M - 1; j++)
                {
                    int next = i;
                    for (int k = 0; k < c[j].Length; k++)
                    {
                        next = next | (1 << c[j][k]);
                    }

                    dp[next, j + 1] = Math.Min(dp[next, j + 1], dp[i, j] + a[j]);
                    dp[i, j + 1] = Math.Min(dp[i, j + 1], dp[i, j]);
                }
            }

            int ans = dp[(1 << N) - 1, M - 1];
            if (ans == int.MaxValue / 2) ans = -1;
            Console.WriteLine(ans);

            //DrawMapforDebug(dp, 1);
        }

        /// <summary>
        /// 二次元配列の可視化メソッド
        /// </summary>
        /// <param name="map"></param>
        static void DrawMapforDebug(int[,] map, int mode = 0)
        {
            int W = map.GetLength(0);
            int H = map.GetLength(1);

            int[,] map2 = new int[W + 1, H + 1];
            for (int i = 0; i < W + 1; i++)
            {
                for (int j = 0; j < H + 1; j++)
                {
                    if (i == 0 && j == 0) map2[i, j] = 0;
                    else if (i == 0) map2[i, j] = j - 1;
                    else if (j == 0) map2[i, j] = i - 1;
                    else map2[i, j] = map[i - 1, j - 1];
                }
            }

            for (int i = 0; i < W + 1; i++)
            {
                for (int j = 0; j < H + 1; j++)
                {
                    if (mode == 0) Console.Write(map2[i, j] % 10);
                    if (mode == 1) Console.Write(map2[i, j] + " ");
                }
                Console.WriteLine();
            }
            Console.WriteLine();
        }
    }

}

namespace Assistant
{
    static class Input
    {
        static List<string> line = new List<string>();
        static int index = 0;
        static String ReadNext()
        {
            if (line.Count <= index) line.AddRange(Console.ReadLine().Split());
            return line[index++];
        }
        public static int ReadInt => int.Parse(ReadNext());
        public static long ReadLong => long.Parse(ReadNext());
        public static int[] ReadInts => Console.ReadLine().Split().Select(int.Parse).ToArray();
        public static long[] NextLongs => Console.ReadLine().Split().Select(long.Parse).ToArray();
    }
}


Measured memory_bytes: 29280