#include<iostream>
#include<vector>
#include<algorithm>

using namespace std;
int main() {
	int N,M;
	int sum=0;
	bool flag;
	cin >> N;
	cin >> M;
	vector<int> c(N);
	for (int i = 0; i < N; i++) {
		cin >> c[i];
	}
	sort(c.begin(), c.end());

	for (int i = 0; i < N; i++) {
		flag = true;
		while(c[i]>0){
			c[i]--;
			sum++;
			if (sum == M) {
				flag = false;
				break;
			}
		}
		if (flag == false) {
			break;
		}
	}
	/*for (int i = 0; i < N; i++) {
		cout << c[i]<<"\n";
	}*/
	cout << count(c.begin(), c.end(),0) << endl;
	return 0;
}