#include<bits/stdc++.h>
namespace {
#pragma GCC diagnostic ignored "-Wunused-function"
#include<atcoder/all>
#pragma GCC diagnostic warning "-Wunused-function"
using namespace std;
using namespace atcoder;
#define rep(i,n) for(int i = 0; i < (int)(n); i++)
#define rrep(i,n) for(int i = (int)(n) - 1; i >= 0; i--)
#define all(x) begin(x), end(x)
#define rall(x) rbegin(x), rend(x)
template<class T> bool chmax(T& a, const T& b) { if (a < b) { a = b; return true; } else return false; }
template<class T> bool chmin(T& a, const T& b) { if (b < a) { a = b; return true; } else return false; }
using ll = long long;
using P = pair<int,int>;
using VI = vector<int>;
using VVI = vector<VI>;
using VL = vector<ll>;
using VVL = vector<VL>;

} int main() {
  ios::sync_with_stdio(false);
  cin.tie(0);
  int n, q;
  cin >> n >> q;
  VL a(n);
  rep(i, n) cin >> a[i];
  constexpr long long INF = 1002003004005006007;
  segtree<ll, [](ll x, ll y) { return max(x, y); }, []() { return -INF; }> seg(a);
  rep(_, q) {
    ll op;
    cin >> op;
    if (op == 1) {
      ll i, x;
      cin >> i >> x;
      i--;
      seg.set(i, seg.get(i) + x);
    } else if (op == 2) {
      ll l, r;
      cin >> l >> r;
      cout << seg.prod(l - 1, r) << '\n';
    } else {
      continue;
    }
  }
}