#include <atcoder/segtree>
#include <bits/stdc++.h>

using namespace std;
using ll = long long;
#define rep(i, n) for (int i = 0; i < (int)(n); i++)

using S = vector<int>;

S op(S a, S b) {
    for (int i : b)
        a.push_back(i);
    sort(a.begin(), a.end());
    while (a.size() > 10)
        a.pop_back();
    return a;
}
S e() {
    return S();
}

int main() {
    cin.tie(nullptr);
    ios_base::sync_with_stdio(false);
    int n, q;
    cin >> n >> q;
    atcoder::segtree<S, op, e> seg(n);
    rep(i, n) {
        int s;
        cin >> s;
        seg.set(i, {s});
    }
    while (q--) {
        int l, r, k;
        cin >> l >> r >> k;
        l--;
        ll ans = 0;
        S x = seg.prod(l, r);
        rep(i, k) ans += x[i];
        cout << ans << endl;
    }
    return 0;
}