// By Stefan Radu

#include <algorithm>
#include <fstream>
#include <iomanip>
#include <cassert>
#include <vector>
#include <string>
#include <cctype>
#include <queue>
#include <deque>
#include <cmath>
#include <stack>
#include <map>
#include <set>

using namespace std;

#define sz(x) (int)(x).size()

typedef pair < int, int > pii;
typedef long long ll;
typedef long double ld;
typedef unsigned int ui;
typedef unsigned long long ull;

ifstream cin("datorii.in");
ofstream cout("datorii.out");

vector < int > tree;

void update(int val, int poz, int &n) {
  while (poz <= n) {
    tree[poz] += val;
    poz += (poz & -poz);
  }
}

int query(int poz) {
  int sum = 0;
  while (poz) {
    sum += tree[poz];
    poz ^= (poz & -poz);
  }
  return sum;
}

int main() {

#ifdef STEF
  freopen("input", "r", stdin);
  freopen("output", "w", stdout);
#endif

  ios::sync_with_stdio(false);
  cin.tie(0);cout.tie(0);

  int n, q;
  cin >> n >> q;

  tree.resize(n + 1, 0);
  for (int i = 1; i <= n; ++ i) {
    int val; cin >> val;
    update(val, i, n);
  }

  while (q --) {

    int type; cin >> type;

    if (type == 0) {
      int t, v;
      cin >> t >> v;
      update(-v, t, n);
    }
    else {
      int a, b;
      cin >> a >> b;
      cout << query(b) - query(a - 1) << '\n';
    }
  }
}