# -*- coding:utf-8 -*-

def solve():
    from collections import deque

    N = int(input())
    Us = [[] for _ in range(N)]

    for i in range(N):
        _in = list(map(int, input().split()))
        if len(_in) == 2:
            continue
        u, k, Vs = _in[0], _in[1], _in[2:]
        Vs.sort()
        for v in Vs:
            Us[u-1].append(v-1)
        Us[u-1] = deque(Us[u-1])

    find = [0 for _ in range(N)]  # 発見時刻
    terminated = [0 for _ in range(N)]  # 終了時刻
    tim = [0]  # 経過時間

    def dfs(now):
        while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

        if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

    for i in range(N):
        if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

    for i in range(N):
        print(i+1, find[i], terminated[i])


if __name__ == "__main__":
    solve()
 def solve():
    from collections import deque

    N = int(input())
    Us = [[] for _ in range(N)]

    for i in range(N):
        _in = list(map(int, input().split()))
        if len(_in) == 2:
            continue
        u, k, Vs = _in[0], _in[1], _in[2:]
        Vs.sort()
        for v in Vs:
            Us[u-1].append(v-1)
        Us[u-1] = deque(Us[u-1])

    find = [0 for _ in range(N)]  # 発見時刻
    terminated = [0 for _ in range(N)]  # 終了時刻
    tim = [0]  # 経過時間

    def dfs(now):
        while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

        if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

    for i in range(N):
        if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

    for i in range(N):
        print(i+1, find[i], terminated[i]) solve from collections import deque N = int(input()) N int(input()) int input() input [] for _ in range(N) for _ in range(N) _ range(N) range N for _ in range(N) [] Us = [[] for _ in range(N)] Us [[] for _ in range(N)] for i in range(N):
        _in = list(map(int, input().split()))
        if len(_in) == 2:
            continue
        u, k, Vs = _in[0], _in[1], _in[2:]
        Vs.sort()
        for v in Vs:
            Us[u-1].append(v-1)
        Us[u-1] = deque(Us[u-1])

     i range(N) range N _in = list(map(int, input().split())) _in list(map(int, input().split())) list map(int, input().split()) map int input().split() ().split () input split if len(_in) == 2:
            continue
         len(_in) == 2 len(_in) len _in 2 continue u, k, Vs = _in[0], _in[1], _in[2:] u _in[0] _in 0 k _in[1] _in 1 Vs _in[2:] _in 2: 2 Vs.sort() Vs.sort Vs sort for v in Vs:
            Us[u-1].append(v-1)
         v Vs Us[u-1].append(v-1) [u-1].append [u-1] Us u-1 u 1 append v-1 v 1 Us[u-1] = deque(Us[u-1]) Us[u-1] Us u-1 u 1 deque(Us[u-1]) deque Us[u-1] Us u-1 u 1 0 for _ in range(N) for _ in range(N) _ range(N) range N for _ in range(N) 0 find = [0 for _ in range(N)] find [0 for _ in range(N)] 0 for _ in range(N) for _ in range(N) _ range(N) range N for _ in range(N) 0 terminated = [0 for _ in range(N)] terminated [0 for _ in range(N)] tim = [0] tim [0] 0 def dfs(now):
        while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

        if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

     dfs while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

         Us[now] Us now nxt = Us[now].popleft() nxt Us[now].popleft() [now].popleft [now] Us now popleft if find[nxt] != 0:
                continue

             find[nxt] != 0 find[nxt] find nxt 0 continue tim[0] += 1 tim[0] tim 0 1 find[nxt] = tim[0] find[nxt] find nxt tim[0] tim 0 dfs(nxt) dfs nxt if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

     terminated[now] == 0 terminated[now] terminated now 0 tim[0] += 1 tim[0] tim 0 1 terminated[now] = tim[0] terminated[now] terminated now tim[0] tim 0 now now for i in range(N):
        if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

     i range(N) range N if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

     find[i] == 0 find[i] find i 0 tim[0] += 1 tim[0] tim 0 1 find[i] = tim[0] find[i] find i tim[0] tim 0 dfs(i) dfs i for i in range(N):
        print(i+1, find[i], terminated[i]) i range(N) range N print(i+1, find[i], terminated[i]) print i+1 i 1 find[i] find i terminated[i] terminated i if __name__ == "__main__":
    solve() __name__ == "__main__" __name__ "__main__" solve() solve def solve():
    from collections import deque

    N = int(input())
    Us = [[] for _ in range(N)]

    for i in range(N):
        _in = list(map(int, input().split()))
        if len(_in) == 2:
            continue
        u, k, Vs = _in[0], _in[1], _in[2:]
        Vs.sort()
        for v in Vs:
            Us[u-1].append(v-1)
        Us[u-1] = deque(Us[u-1])

    find = [0 for _ in range(N)]  # 発見時刻
    terminated = [0 for _ in range(N)]  # 終了時刻
    tim = [0]  # 経過時間

    def dfs(now):
        while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

        if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

    for i in range(N):
        if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

    for i in range(N):
        print(i+1, find[i], terminated[i]) def solve():
    from collections import deque

    N = int(input())
    Us = [[] for _ in range(N)]

    for i in range(N):
        _in = list(map(int, input().split()))
        if len(_in) == 2:
            continue
        u, k, Vs = _in[0], _in[1], _in[2:]
        Vs.sort()
        for v in Vs:
            Us[u-1].append(v-1)
        Us[u-1] = deque(Us[u-1])

    find = [0 for _ in range(N)]  # 発見時刻
    terminated = [0 for _ in range(N)]  # 終了時刻
    tim = [0]  # 経過時間

    def dfs(now):
        while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

        if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

    for i in range(N):
        if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

    for i in range(N):
        print(i+1, find[i], terminated[i]) solve
# -*- coding:utf-8 -*-

def solve():
    from collections import deque

    N = int(input())
    Us = [[] for _ in range(N)]

    for i in range(N):
        _in = list(map(int, input().split()))
        if len(_in) == 2:
            continue
        u, k, Vs = _in[0], _in[1], _in[2:]
        Vs.sort()
        for v in Vs:
            Us[u-1].append(v-1)
        Us[u-1] = deque(Us[u-1])

    find = [0 for _ in range(N)]  # 発見時刻
    terminated = [0 for _ in range(N)]  # 終了時刻
    tim = [0]  # 経過時間

    def dfs(now):
        while Us[now]:
            nxt = Us[now].popleft()

            if find[nxt] != 0:
                continue

            tim[0] += 1
            find[nxt] = tim[0]

            dfs(nxt)

        if terminated[now] == 0:
            tim[0] += 1
            terminated[now] = tim[0]

    for i in range(N):
        if find[i] == 0:
            tim[0] += 1
            find[i] = tim[0]
            dfs(i)

    for i in range(N):
        print(i+1, find[i], terminated[i])


if __name__ == "__main__":
    solve()

