#include <fstream>

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

const int MAXN = 15001;
int arr[MAXN], tree[4 * MAXN], n, m, i, x, y, op;

void buildTree(int left, int right, int pos)
{
    if (left == right)
    {
        tree[pos] = arr[i];
        return;
    }
    int mid = left + (right - left) / 2;
    if (i <= mid)
        buildTree(left, mid, 2 * pos + 1);
    if (i > mid)
        buildTree(mid + 1, right, 2 * pos + 2);
    tree[pos] = tree[2 * pos + 1] + tree[2 * pos + 2];
}

int sumTree(int left, int right, int pos)
{
    if (x <= left && y >= right)
        return tree[pos];
    if (x > right || y < left)
        return 0;
    int mid = left + (right - left) / 2;
    return sumTree(left, mid, 2 * pos + 1) + sumTree(mid + 1, right, 2 * pos + 2);
}

int main()
{
    cin >> n >> m;
    for (i = 0; i < n; i++)
    {
        cin >> arr[i];
        buildTree(0, n - 1, 0);
    }
    for (i = 0; i <= m; i++)
    {
        cin >> op >> x >> y;
        if (op == 0)
        {
            i = x - 1;
            arr[i] -= y;
            buildTree(0, n - 1, 0);
        }
        if (op == 1)
        {
            x--;
            y--;
            cout << sumTree(0, n - 1, 0) << '\n';
        }
    }
    return 0;
}