import sys
input = sys.stdin.readline
from operator import itemgetter

N,Q,WT,ST=map(int,input().split())
W=list(map(int,input().split()))
LR=[list(map(int,input().split()))+[i+1] for i in range(Q)]

LR.sort(key=itemgetter(0))

LIST=[[] for i in range(1000)]

for x,y,ind in LR:
    LIST[x//500].append((y,ind))

ANS=[]

count=0
for i in range(1000):
    if LIST[i]==[]:
        continue
    if count%2==0:
        LIST[i].sort(key=itemgetter(0))
    else:
        LIST[i].sort(key=itemgetter(0),reverse=True)
        
    for _,ind in LIST[i]:
        ANS.append(ind)

    count+=1

print(*ANS)