#pragma GCC target("avx2")
#pragma GCC optimize("03")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
using ld = long double;
using ll = long long;
using ull = unsigned long long;
#define endl "\n"
#define FOR(i, a, b) for (int i = (a); i <= (b); i++)
#define rep(i, n) for (int i = 0; i < (n); i++)
#define PII pair<int, int>
#define PLL pair<ll, ll>
#define ALL(x) (x).begin(), (x).end()
int dx[] = {1, 0, -1, 0};
int dy[] = {0, 1, 0, -1};
constexpr int INF = 1 << 30;
constexpr ll LINF = 1LL << 40;
constexpr ll mod = 1e9 + 7;
void flush() { cout << flush; }
template <class T>
vector<T> vec(int len, T elem) {
    return vector<T>(len, elem);
}  // auto dp = vec(52, vec(103, vec(103, INF)));
template <class T>
inline bool chmax(T &a, const T &b) {
    if (a < b) {
        a = b;
        return 1;
    }
    return 0;
}
template <class T>
inline bool chmin(T &a, const T &b) {
    if (b < a) {
        a = b;
        return 1;
    }
    return 0;
}
template <class T>
inline int popcount(T a) {
    return __builtin_popcountll(a);
}
template <class T>
inline T emod(T a, T p) {
    return (a % p + p) % p;
}
template <typename T>
istream &operator>>(istream &is, vector<T> &vec) {
    for (auto &v : vec) is >> v;
    return is;
}
template <typename T>
ostream &operator<<(ostream &os, const vector<T> &vec) {
    os << '\n';
    for (auto v : vec) os << v << ' ';
    os << '\n';
    return os;
}
template <typename T>
ostream &operator<<(ostream &os, const deque<T> &vec) {
    os << "deq[";
    for (auto v : vec) os << v << ',';
    os << ']';
    return os;
}
template <typename T>
ostream &operator<<(ostream &os, const set<T> &vec) {
    os << '{';
    for (auto v : vec) os << v << ',';
    os << '}';
    return os;
}
template <typename T>
ostream &operator<<(ostream &os, const unordered_set<T> &vec) {
    os << '{';
    for (auto v : vec) os << v << ',';
    os << '}';
    return os;
}
template <typename T>
ostream &operator<<(ostream &os, const multiset<T> &vec) {
    os << '{';
    for (auto v : vec) os << v << ',';
    os << '}';
    return os;
}
template <typename T>
ostream &operator<<(ostream &os, const unordered_multiset<T> &vec) {
    os << '{';
    for (auto v : vec) os << v << ',';
    os << '}';
    return os;
}
template <typename T1, typename T2>
ostream &operator<<(ostream &os, const pair<T1, T2> &pa) {
    os << '(' << pa.first << ',' << pa.second << ')';
    return os;
}
template <typename TK, typename TV>
ostream &operator<<(ostream &os, const map<TK, TV> &mp) {
    os << '{';
    for (auto v : mp) os << v.first << "=>" << v.second << ',';
    os << '}';
    return os;
}
template <typename TK, typename TV>
ostream &operator<<(ostream &os, const unordered_map<TK, TV> &mp) {
    os << '{';
    for (auto v : mp) os << v.first << "=>" << v.second << ',';
    os << '}';
    return os;
}
struct MyIO {
    MyIO() {
        cin.tie(0);
        ios::sync_with_stdio(false);
        cout << fixed << setprecision(15);
    }
} IO_OI;
#ifdef LOCAL
void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << " " << H;
    debug_out(T...);
}
#define debug(...) \
    cerr << __LINE__ << " [" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#define dump(x) cerr << __LINE__ << " " << #x << " = " << (x) << endl
#else
#define debug(...) (void(0))
#define dump(x) (void(0))
#endif
//-------------------
template <class T, class E>
struct SegmentTree {
    using F = function<T(T, T)>;
    using G = function<T(T, E)>;
    using H = function<E(E, E)>;
    using P = function<E(E, int)>;
    int n;
    F f;
    G g;  // pで変換したものをdataに移す時
    H h;  // lazyを遷移させる時
    P p;  // lazyを必要な形に変換
    T d1;
    E d0;
    vector<T> dat;
    vector<E> laz;
    SegmentTree(
        int n_, F f, G g, H h, T d1, E d0, vector<T> v = vector<T>(),
        P p = [](E a, int b) { return a; })
        : f(f), g(g), h(h), d1(d1), d0(d0), p(p) {
        init(n_);
        if (n_ == (int)v.size()) build(n_, v);
    }
    void init(int n_) {
        n = 1;
        while (n < n_) n *= 2;
        dat.clear();
        dat.resize(2 * n - 1, d1);
        laz.clear();
        laz.resize(2 * n - 1, d0);
    }
    void build(int n_, vector<T> v) {
        for (int i = 0; i < n_; i++) dat[i + n - 1] = v[i];
        for (int i = n - 2; i >= 0; i--)
            dat[i] = f(dat[i * 2 + 1], dat[i * 2 + 2]);
    }
    inline void eval(int len, int k) {
        if (laz[k] == d0) return;
        if (k * 2 + 1 < n * 2 - 1) {
            laz[k * 2 + 1] = h(laz[k * 2 + 1], laz[k]);
            laz[k * 2 + 2] = h(laz[k * 2 + 2], laz[k]);
        }
        dat[k] = g(dat[k], p(laz[k], len));
        laz[k] = d0;
    }
    T update(int a, int b, E x, int k, int l, int r) {
        eval(r - l, k);
        if (r <= a || b <= l) return dat[k];
        if (a <= l && r <= b) {
            laz[k] = h(laz[k], x);
            return g(dat[k], p(laz[k], r - l));
        }
        return dat[k] = f(update(a, b, x, k * 2 + 1, l, (l + r) / 2),
                          update(a, b, x, k * 2 + 2, (l + r) / 2, r));
    }
    T update(int a, int b, E x) { return update(a, b, x, 0, 0, n); }
    T _query(int a, int b, int k, int l, int r) {
        eval(r - l, k);
        if (r <= a || b <= l) return d1;
        if (a <= l && r <= b) return dat[k];
        T vl = _query(a, b, k * 2 + 1, l, (l + r) / 2);
        T vr = _query(a, b, k * 2 + 2, (l + r) / 2, r);
        return f(vl, vr);
    }
    T query(int a, int b) { return _query(a, b, 0, 0, n); }
};
// END CUT HERE
signed main() {
    int n, q;
    cin >> n;
    vector<ll> a(n);
    cin >> a >> q;
    debug(a);
    SegmentTree<ll, ll> ch(
        n, [&](ll l, ll r) { return min(l, r); },
        [](ll l, ll r) { return l + r; }, [](ll l, ll r) { return l + r; },
        LINF, 0LL, a);
    while (q--) {
        int k, l, r;
        cin >> k >> l >> r;
        ll c;
        cin >> c;
        if (k == 1) {
            ch.update(l - 1, r, c);
        } else {
            cout << ch.query(l - 1, r) << endl;
        }
    }
}