#include<iostream>
#include<algorithm>
using namespace std;
#define REP(i,n) for (int i=0;i<(n);i++)
int N,K,A[21],sum=-1;
int main(){
    cin>>N>>K;
    REP(i,N)cin>>A[i];
    REP(Bit,1<<N){
        int temp=0;
        REP(i,N)if(Bit&(1<<i))temp+=A[i];
        if(temp<=K)sum=max(sum,temp);
    }
    cout<<sum<<endl;
    return 0;
}