#coding: utf-8
##yuki_113
import sys

nm=[]
nm=map(int,raw_input().split())
n=nm[0]
m=nm[1]

c=[]
c=map(int,raw_input().split())
c.sort()

csum=sum(c)
if csum==0:
 print 0
 sys.exit()
if csum<m:
 print "The number of candy is insufficient"
 sys.exit()

s=0
for i in xrange(len(c)):
 s+=c[i]
 if s==m:
  print i+1
  break
 elif s>m:
  print i
  break