#include <bits/stdc++.h>
using namespace std;
#define ll long long

int n,k,a[21],sum=-1;

int main(){
	cin>>n>>k;
	for(int i=0;i<n;++i)cin>>a[i];

	for(int bit=0;bit<(1<<n);++bit){
		int temp=0;
		for(int i=0;i<n;++i){
			if(bit&(1<<i)){
				temp+=a[i];
			}
		}
		if(temp<=k){
			sum=max(sum,temp);
		}
	}

	cout<<sum<<endl;
}