#include<bits/stdc++.h>
using namespace std;
int a[20000],n,h,b,c;
signed main()
{
	cin>>n>>b;
	for(int i=1;i<=n;i++){
		cin>>a[i];
	}
	sort(a+1,a+n+1,greater<int>());
	for(int i=1;i<=n;i++){
		if(h<b){
		h+=a[i++];
		c++;
	}
	}
	cout<<c;
	return 0;
}