#include<iostream>
#include<string>
#include<string.h>
#include<algorithm>
#include<stdio.h>
#include<cmath>
#include<vector>
#include<utility>
#include<stack>
#include<queue>
#include<list>

#define FOR(i, a, b) for(int i=(a);i<=(b);i++)
#define RFOR(i, a, b) for(int i=(a);i>=(b);i--)
#define MOD 1000000007
#define INF 1000000000

using namespace std;


int main(void) {
	int n, m;
	int c[10];

	cin >> n >> m;
	FOR(i, 0, n - 1) {
		cin >> c[i];
	}
	sort(c, c + n);
	FOR(i, 0, n) {
		while (c[i] > 0&&m!=0) {
			c[i]--;
			m--;
			
		}
		if (m == 0) {
			cout << i << endl;
			break;
		}
	}
	return 0;
}