#coding:utf-8

from heapq import heapify,heappop

N,M=map(int,raw_input().split())
C=map(int,raw_input().split())

heapify(C)

cnt=0
for i in range(N):
	M-=heappop(C)
	cnt+=1
	if M < 0:
		cnt-=1
		break
	if M==0:
		break

print cnt