from operator import itemgetter
N,K = map(int,input().split())
team = [() for i in range(N)]
for i in range(N):
	s,p,u = map(int,input().split())
	team[i] = (s,p,u,i)
team = sorted(team,key=itemgetter(2))
team = sorted(team,key=itemgetter(0),reverse=True)
cnt = [0 for i in range(100000 + 1)]
for i in range(N):
	cnt[team[i][2]]+=1
	team[i] = (team[i][0],team[i][1],team[i][2],team[i][3],cnt[team[i][2]])
team = sorted(team,key=itemgetter(2))
team = sorted(team,key=itemgetter(4))
team = sorted(team,key=itemgetter(0),reverse=True)
for i in range(K):
	print(team[i][3])