N, K = map(int, input().split())

Teams = []
for i in range(N):
    S, P, U = map(int, input().split())
    Teams.append([S, P, U, i, 0])

Teams.sort(key=lambda x: (-x[0], x[1]))

Univ = [1] * (10 ** 5)
for i in range(N):
    Teams[i][4] = Univ[Teams[i][2]]
    Univ[Teams[i][2]] += 1

Teams.sort(key=lambda x: (-x[0], x[4], x[1]))
for i in range(K):
    print(Teams[i][3])