#include <bits/stdc++.h>
#if __has_include(<atcoder/all>)
#include <atcoder/all>
using namespace atcoder;
#endif
#define rep(i, n) for (int i = 0; i < (n); ++i)

using std::cin;
using std::cout;
using std::min;
using std::vector;
using ll = long long;

const ll INF = 1e18;

ll op(ll a, ll b) { return min(a, b); }

ll e() { return INF; }

ll mapping(ll f, ll x) { return f + x; }

ll composition(ll f, ll g) { return f + g; }

ll id() { return 0; }

int main() {
	int n;
	cin >> n;
	
	vector<ll> a(n);
	rep(i, n) cin >> a[i];
	
	lazy_segtree<ll, op, e, ll, mapping, composition, id> t(a);
	
	int q;
	cin >> q;
	rep(qi, q) {
		int k, l, r, c;
		cin >> k >> l >> r >> c;
		--l;
		if (k == 1) {
			t.apply(l, r, c);
		}
		else {
			cout << t.prod(l, r) << '\n';
		}
	}
	
	return 0;
}