from collections import defaultdict, deque
from heapq import heappush, heappop
from bisect import bisect_left, bisect_right
import sys
import random
import itertools
import math
sys.setrecursionlimit(10**5)
input = sys.stdin.readline
sqrt = math.sqrt


def LI(): return list(map(int, input().split()))


def LF(): return list(map(float, input().split()))


def LI_(): return list(map(lambda x: int(x)-1, input().split()))


def II(): return int(input())


def IF(): return float(input())


def LS(): return list(map(list, input().split()))


def S(): return list(input().rstrip())


def IR(n): return [II() for _ in range(n)]


def LIR(n): return [LI() for _ in range(n)]


def FR(n): return [IF() for _ in range(n)]


def LFR(n): return [LI() for _ in range(n)]


def LIR_(n): return [LI_() for _ in range(n)]


def SR(n): return [S() for _ in range(n)]


def LSR(n): return [LS() for _ in range(n)]


def gcd(x, y):
    if y == 0:
        return x
    return gcd(y, x % y)


def my_index_multi(l, x):
    return [i for i, _x in enumerate(l) if _x == x]


mod = 1000000007
inf = float('INF')


def A():
    a = II()
    b = a//2
    p = b/a
    if a % 2:
        print(1-p)
    else:
        print(p)

    return

# B


def B():
    N, K = map(int, input().split())
    h = LI()
    count = 0

    for i in h:
        if i >= K:
            count += 1
        else:
            continue
    print(count)
    return

# C


def C():
    N = II()
    A = LI()
    J = [0] * N
    for i, n in enumerate(A):
        J[n-1] = i+1
    for s in J:
        print(s, end=" ")

    return

# D


def D():
    A, B = map(int, input().split())
    g = gcd(A, B)
    # go = g
    # myset = set([1])
    sq = int(sqrt(g)) + 2
    ans = 1

    for i in range(2, sq):
        if g % i == 0:
            ans += 1
        while g % i == 0:
            g /= i

            # myset.add(i)
        if g == 1:
            break
        if i == sq - 1:
            # myset.add(go)
            ans += 1

    print(ans)

    return

# E


def E():
    N, M = LI()

    value = [0] * M
    power = [0] * M
    for i in range(M):
        a, b = LI()
        value[i] = a
        c = LI()
        L = ['0'] * N
        for k in c:
            L[k-1] = '1'
        bin = ''.join(L)
        power[i] = int(bin, 2)
    bin = ''.join(list(['1'] * N))
    #dp = [[inf] * (int(bin, 2)+1)] * M
    dp = [[inf for i in range(int(bin, 2)+1)] for j in range(M+1)]
    dp[0][0] = 0

    # for x in range(int(bin, 2)+1):
    #dp[0][x] = 0
    for i in range(M):

        for w in range(int(bin, 2) + 1):

            t = w | power[i]
            cost = dp[i][w] + value[i]

            dp[i+1][t] = min(dp[i+1][t], cost)

            dp[i+1][w] = min(dp[i][w], dp[i+1][w])

    print(-1) if dp[-1][-1] == inf else print(dp[-1][-1])

    return

# F


def F():
    N, M = map(int, input().split())

    key = []
    for _ in range(M):
        a, b = map(int, input().split())
        c = list(map(int, input().split()))
        unlock = 0
        for i in range(1, N+1):
            if i in c:
                unlock += 2 ** (i-1)
        key.append((a, unlock))

    dp = [[float('inf') for _ in range(2 ** N)] for _ in range(M + 1)]
    dp[0][0] = 0
    for i in range(M):
        for state in range(2 ** N):
            next_state = state | key[i][1]
            dp[i+1][next_state] = min(dp[i][state] + key[i]
                                      [0], dp[i+1][next_state])
        for state in range(2 ** N):
            dp[i+1][state] = min(dp[i+1][state], dp[i][state])

    if dp[-1][-1] < 10 ** 10:
        print(dp[-1][-1])
    else:
        print(-1)
    return


# Solve
if __name__ == '__main__':
    E()


Measured memory_bytes: 148952