#include <stdio.h>

const int MAX_N = 15000;

int n, AIB[1 + MAX_N];

void update(int pos, int val) {
  for (int i = pos; i <= n; i += i & (-i))
    AIB[i] += val;
}

int query(int pos) {
  int val = 0;
  for (int i = pos; i > 0; i -= i & (-i))
    val += AIB[i];
  return val;
}

int main() {

  freopen("datorii.in", "r", stdin);
  freopen("datorii.out", "w", stdout);

  int m;
  scanf("%d %d", &n, &m);
  for (int i = 1; i <= n; i++) {
    int x;
    scanf("%d", &x);
    update(i, x);
  }
  for (int i = 1; i <= m; i++) {
    int c, u, v;
    scanf("%d%d%d", &c, &u, &v);
    if (c == 0)
      update(u, -v);
    else if (c == 1)
      printf("%d\n", query(v));
  }


  fclose(stdin);
  fclose(stdout);

  return 0;
}