#include <bits/stdc++.h>                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
using namespace std;
constexpr int N = 1e5 + 5;
int n, m;
using ll = long long;
ll a[N];
int main() {
	cin.tie(0)->sync_with_stdio(0);
	cin >> *new int >> n >> m;
	for (int i = 1; i <= n; i++) {
		cin >> a[i];
	}
	while (m--) {
		int o, l, r, x;
		cin >> o >> l >> r;
		if (o == 1) {
			cin >> x;
			for (int i = l; i <= r; i++) {
				if (a[i] < x) a[i] = x - a[i];
				else a[i] = x + a[i];
			}
		} else {
			ll s = 0;
			for (int i = l; i <= r; i++) {
				s += a[i];
			}
			cout << s << "\n";
		}
	}
	return 0;
}