import random


def read_data():
    N, M = map(int, input().split())
    score = [[0] * N for i in range(N)]
    for i in range(M):
        a, b, s = map(int, input().split())
        score[a][b] = s
    return N, M, score


def solve(N, M, score):
    sol = list(range(N))
    total = calc_score(sol, score)
    delta = 10**6
    r = 0.995
    record = total
    best_sol = sol[:]
    while int(delta):
        delta *= r
        a = random.randint(0, N-1)
        b = random.randint(0, N-1)
        if a == b:
            continue
        sol[a], sol[b] = sol[b], sol[a]
        new_total = calc_score(sol, score)
        if new_total + delta < total:
            sol[a], sol[b] = sol[b], sol[a]
        else:
            if new_total > record:
                record = new_total
                best_sol = sol[:]
            total = new_total
    return record, best_sol


def calc_score(sol, score):
    n = len(sol)
    total = 0
    for i in range(n-1):
        score_i = score[sol[i]]
        for j in range(i+1, n):
            total += score_i[sol[j]]
    return total

if __name__ == '__main__':
    N, M, score = read_data()
#    N, M = 50, 50 * 49
#    score = [[random.randint(0, 10000) for j in range(N)] for i in range(N)]
    total, solution = solve(N, M, score)
    print(total)
    print(' '.join(map(str, solution)))