#include <bits/stdc++.h>
using namespace std;
ifstream fin("bete.in");
ofstream fout("bete.out");

int n,S;
int v[103];
int a[10003];
int sol[103];

int main()
{
    int i,ult;
    int x,j,k;

    fin >> n >> S;
    for (i = 1; i <= n; i++)
        fin >> v[i];

    a[v[1]] = 1; ult = v[1];
    for (i = 2; i <= n; i++)
    {
        x = v[i];
        for (j = ult; j >= 1; j--)
            if (a[j] != 0 && j+x <= S) a[j+x] = i;
        a[x] = i;
        ult = min(S,ult+x);
    }

    if (a[S] == 0) fout << "NU\n";
    else
    {
        fout << "DA\n";

        k = 0;
        while (S != 0)
        {
            sol[++k] = a[S];
            S-=v[a[S]];
        }

        fout << k << "\n";
        for (i = k; i >= 1; i--)
            fout << sol[i] << " ";
    }

    return 0;
}