T = int(input())
assert 1 <= T <= 10**5
n_sum = 0
for i in range(T):
    n = int(input())
    p = list(map(int, input().split()))
    assert len(p) == n - 1
    n_sum += n
    for i in range(n - 1):
        assert 1 <= p[i] <= i + 1
assert n_sum <= 2 * 10**5