#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<ll, ll> l_l;
typedef pair<int, int> i_i;
struct query {
    ll val;
    ll type;
    ll l;
    ll r;
    ll index;
    query(ll a, ll b, ll c, ll d, ll e) {
        val = a;
        type = b;
        l = c;
        r = d;
        index = e;
    }
};

bool operator > (query a, query b) {
    return a.val > b.val;
}

bool operator < (query a, query b) {
    return a.val < b.val;
}

template<class T>
inline bool chmax(T &a, T b) {
    if(a < b) {
        a = b;
        return true;
    }
    return false;
}

template<class T>
inline bool chmin(T &a, T b) {
    if(a > b) {
        a = b;
        return true;
    }
    return false;
}

#define EPS (1e-7)
#define INF (1e9)
#define PI (acos(-1))
//const ll mod = 1000000007;
struct SegmentTree {
private:
    int n;
    vector<ll> node;
 
public:
    SegmentTree() {
        int sz = 100050;
        n = 1; while(n < sz) n *= 2;
        node.resize(2*n-1, 0);
        for(int i=0; i<sz; i++) node[i+n-1] = 0;
        for(int i=n-2; i>=0; i--) node[i] = min(node[2*i+1], node[2*i+2]);
    }
 
    void update(int x, int val) {
        x += (n - 1);
        node[x] = val;
        while(x > 0) {
            x = (x - 1) / 2;
            node[x] = (node[2*x+1] + node[2*x+2]);
        }
    }
    // hannkaikukann 
    ll getsum(int a, int b, int k=0, int l=0, int r=-1) {
        if(r < 0) r = n;
        if(r <= a || b <= l) return 0;
        if(a <= l && r <= b) return node[k];
 
        ll vl = getsum(a, b, 2*k+1, l, (l+r)/2);
        ll vr = getsum(a, b, 2*k+2, (l+r)/2, r);
        return (vl + vr);
    }
};

ll ans[105000];

int main() {
    //cout.precision(10);
    cin.tie(0);
    ios::sync_with_stdio(false);
    int N, Q;
    cin >> N >> Q;
    SegmentTree val, num;
    vector<query> v;
    for(int i = 1; i <= N; i++) {
        ll a;
        cin >> a;
        v.emplace_back(a, 1, -1, -1, i);
    }
    for(int i = 1; i <= Q; i++) {
        ll a, l, r, x;
        cin >> a >> l >> r >> x;
        v.emplace_back(x, 2, l, r, i);
    }
    sort(v.begin(), v.end(), greater<query>());
    for(int i = 0; i < v.size(); i++) {
        if(v[i].type == 1) {
            val.update(v[i].index, v[i].val);
            num.update(v[i].index, 1);
            continue;
        } else {
            ll VAL = val.getsum(v[i].l, v[i].r + 1);
            ll NUM = num.getsum(v[i].l, v[i].r + 1);
            ans[v[i].index] = VAL - NUM * v[i].val;
        }
    }
    for(int i = 1; i <= Q; i++) {
        cout << ans[i] << endl;
    }
    return 0;
}