#include <cstdio>
using namespace std;
const int MAXN = 15000;
int aib[MAXN + 5];
void update(int a, int b, int n){
    for (; a <= n; a += a & -a)
        aib[a] += b;
}
int query(int a){
    int s = 0;
    for (; a; a -= a & -a)
        s += aib[a];
    return s;
}
int main(){
    freopen("datorii.in", "r", stdin);
    freopen("datorii.out", "w", stdout);
    int n, m, i, op, p, q;
    scanf("%d%d", &n, &m);
    for (i = 1; i <= n; i ++){
        scanf("%d", &p);
        update(i, p, n);
    }
    for (i = 1; i <= m; i ++){
        scanf("%d%d%d", &op, &p, &q);
        if (op == 0)
            update(p, -q, n);
        else
            printf("%d\n", query(q) - query(p - 1));
    }
    return 0;
}