from operator import itemgetter

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

RANK=[0]*(10**5+5)

LIST.sort(key=itemgetter(1))
LIST.sort(key=itemgetter(0),reverse=True)

#print(LIST)

for i in range(N):
    LIST[i].append(RANK[LIST[i][-2]])
    RANK[LIST[i][-3]]+=1

LIST.sort(key=itemgetter(1))
LIST.sort(key=itemgetter(4))
LIST.sort(key=itemgetter(0),reverse=True)

for i in range(K):
    print(LIST[i][-2])