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

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int N, Q;
    cin >> N >> Q;

    vector<long long> A(N);
    for (int i = 0; i < N; i++) {
        cin >> A[i];
    }

    vector<long long> answers;

    for (int _ = 0; _ < Q; _++) {
        int type;
        cin >> type;

        if (type == 1) {
            int x;
            long long y;
            cin >> x >> y;
            A[x - 1] = y;
        }

        if (type == 2) {
            int l, r;
            long long a, b;
            cin >> l >> r >> a >> b;

            long long ans = 0;
            for (int i = l - 1; i < r; i++) {
                ans += max(a, min(b, A[i]));
            }
            answers.push_back(ans);
        }
    }

    for (auto v : answers) {
        cout << v << '\n';
    }

    return 0;
}