/**
 * code generated by JHelper
 * More info: https://github.com/AlexeyDmitriev/JHelper
 * @author aajisaka
 */


#include<bits/stdc++.h>

using namespace std;

void debug_out() { cerr << endl; }
template <typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
  cerr << " " << to_string(H);
  debug_out(T...);
}
#ifdef LOCAL
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

#define SPEED ios_base::sync_with_stdio(false);cin.tie(nullptr)
#define rep(i,n) for(int i=0; i<(int)(n); i++)
#define all(v) v.begin(), v.end()
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; }

using ll = long long;
using ull = unsigned long long;
using P = pair<ll, ll>;

constexpr long double PI = 3.14159265358979323846264338327950288L;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());


#include <algorithm>
#include <cassert>
#include <iostream>
#include <vector>


#ifdef _MSC_VER
#include <intrin.h>
#endif

namespace internal {

// @param n `0 <= n`
// @return minimum non-negative `x` s.t. `n <= 2**x`
    int ceil_pow2(int n) {
      int x = 0;
      while ((1U << x) < (unsigned int)(n)) x++;
      return x;
    }

// @param n `1 <= n`
// @return minimum non-negative `x` s.t. `(n & (1 << x)) != 0`
    int bsf(unsigned int n) {
#ifdef _MSC_VER
      unsigned long index;
    _BitScanForward(&index, n);
    return index;
#else
      return __builtin_ctz(n);
#endif
    }

}  // namespace internal


/* sample: range add, range max query
auto op = [](ll a, ll b) { return max(a,b); };
auto e = []() { return LLONG_MIN/2; };
auto mapping = [](ll a, ll b) { return a+b; };
auto composition = [](ll a, ll b) { return a+b; };
auto id = []() { return 0LL; };
auto seg = lazy_segtree<ll, op, e, ll, mapping, composition, id>(vec);
*/

template <class S,
    S (*op)(S, S),
    S (*e)(),
    class F,
    S (*mapping)(F, S),
    F (*composition)(F, F),
    F (*id)()>
struct lazy_segtree {
public:
    lazy_segtree() : lazy_segtree(0) {}
    lazy_segtree(int n) : lazy_segtree(std::vector<S>(n, e())) {}
    lazy_segtree(const std::vector<S>& v) : _n(int(v.size())) {
      log = internal::ceil_pow2(_n);
      size = 1 << log;
      d = std::vector<S>(2 * size, e());
      lz = std::vector<F>(size, id());
      for (int i = 0; i < _n; i++) d[size + i] = v[i];
      for (int i = size - 1; i >= 1; i--) {
        update(i);
      }
    }

    void set(int p, S x) {
      assert(0 <= p && p < _n);
      p += size;
      for (int i = log; i >= 1; i--) push(p >> i);
      d[p] = x;
      for (int i = 1; i <= log; i++) update(p >> i);
    }

    S get(int p) {
      assert(0 <= p && p < _n);
      p += size;
      for (int i = log; i >= 1; i--) push(p >> i);
      return d[p];
    }

    S prod(int l, int r) {
      assert(0 <= l && l <= r && r <= _n);
      if (l == r) return e();

      l += size;
      r += size;

      for (int i = log; i >= 1; i--) {
        if (((l >> i) << i) != l) push(l >> i);
        if (((r >> i) << i) != r) push(r >> i);
      }

      S sml = e(), smr = e();
      while (l < r) {
        if (l & 1) sml = op(sml, d[l++]);
        if (r & 1) smr = op(d[--r], smr);
        l >>= 1;
        r >>= 1;
      }

      return op(sml, smr);
    }

    S all_prod() { return d[1]; }

    void apply(int p, F f) {
      assert(0 <= p && p < _n);
      p += size;
      for (int i = log; i >= 1; i--) push(p >> i);
      d[p] = mapping(f, d[p]);
      for (int i = 1; i <= log; i++) update(p >> i);
    }
    void apply(int l, int r, F f) {
      assert(0 <= l && l <= r && r <= _n);
      if (l == r) return;

      l += size;
      r += size;

      for (int i = log; i >= 1; i--) {
        if (((l >> i) << i) != l) push(l >> i);
        if (((r >> i) << i) != r) push((r - 1) >> i);
      }

      {
        int l2 = l, r2 = r;
        while (l < r) {
          if (l & 1) all_apply(l++, f);
          if (r & 1) all_apply(--r, f);
          l >>= 1;
          r >>= 1;
        }
        l = l2;
        r = r2;
      }

      for (int i = 1; i <= log; i++) {
        if (((l >> i) << i) != l) update(l >> i);
        if (((r >> i) << i) != r) update((r - 1) >> i);
      }
    }

    template <bool (*g)(S)> int max_right(int l) {
      return max_right(l, [](S x) { return g(x); });
    }
    template <class G> int max_right(int l, G g) {
      assert(0 <= l && l <= _n);
      assert(g(e()));
      if (l == _n) return _n;
      l += size;
      for (int i = log; i >= 1; i--) push(l >> i);
      S sm = e();
      do {
        while (l % 2 == 0) l >>= 1;
        if (!g(op(sm, d[l]))) {
          while (l < size) {
            push(l);
            l = (2 * l);
            if (g(op(sm, d[l]))) {
              sm = op(sm, d[l]);
              l++;
            }
          }
          return l - size;
        }
        sm = op(sm, d[l]);
        l++;
      } while ((l & -l) != l);
      return _n;
    }

    template <bool (*g)(S)> int min_left(int r) {
      return min_left(r, [](S x) { return g(x); });
    }
    template <class G> int min_left(int r, G g) {
      assert(0 <= r && r <= _n);
      assert(g(e()));
      if (r == 0) return 0;
      r += size;
      for (int i = log; i >= 1; i--) push((r - 1) >> i);
      S sm = e();
      do {
        r--;
        while (r > 1 && (r % 2)) r >>= 1;
        if (!g(op(d[r], sm))) {
          while (r < size) {
            push(r);
            r = (2 * r + 1);
            if (g(op(d[r], sm))) {
              sm = op(d[r], sm);
              r--;
            }
          }
          return r + 1 - size;
        }
        sm = op(d[r], sm);
      } while ((r & -r) != r);
      return 0;
    }

private:
    int _n, size, log;
    std::vector<S> d;
    std::vector<F> lz;

    void update(int k) { d[k] = op(d[2 * k], d[2 * k + 1]); }
    void all_apply(int k, F f) {
      d[k] = mapping(f, d[k]);
      if (k < size) lz[k] = composition(f, lz[k]);
    }
    void push(int k) {
      all_apply(2 * k, lz[k]);
      all_apply(2 * k + 1, lz[k]);
      lz[k] = id();
    }
};


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

ll e() {
  return LLONG_MAX/2;
}

ll mapping(ll a, ll b) {
  return a+b;
}

ll composition(ll a, ll b) {
  return a+b;
}

ll id() {
  return 0LL;
}

class No1234RMQ {
public:
    void solve(istream& cin, ostream& cout) {
      SPEED;
      int n; cin >> n;
      vector<ll> a(n);
      for(auto& x: a) cin >> x;

      auto seg = lazy_segtree<ll, op, e, ll, mapping, composition, id>(a);

      int q; cin >> q;
      while(q--) {
        int k, l, r, c; cin >> k >> l >> r >> c;
        l--; r--;
        if (k==1) {
          seg.apply(l, r+1, c);
        } else {
          cout << seg.prod(l, r+1) << '\n';
        }
      }
    }
};

signed main() {
  No1234RMQ solver;
  std::istream& in(std::cin);
  std::ostream& out(std::cout);
  solver.solve(in, out);
  return 0;
}