#include <cstdio>
#include <iostream>

using namespace std;

int n, m, bit[15005];

int getSum(int index) {
    int sum = 0;
    while (index > 0) {
        sum += bit[index];
        index -= index & (-index);
    }
    return sum;
}

int sumFrom(int a, int b) {
    return getSum(b) - getSum(a - 1);
}

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

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

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

    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        bit[i] = 0;
    }
    for (int i = 1; i <= n; i++) {
        int aux;
        cin >> aux;
        update(i, aux);
    }
    for (int i = 1; i <= m; i++) {
        int a, b, c;
        cin >> a >> b >> c;
        if (a == 1) {
            cout << sumFrom(b, c) << "\n";
        } else {
            update(b, -c);
        }
    }

    return 0;
}