#include <stdio.h>

using namespace std;

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


#define zeros(x) ((x^(x-1))&x)

FILE *in = fopen("datorii.in", "r"), *out = fopen("datorii.out", "w");

long long int AIB[15005];
int n;

void add(int x, long long int quantity) {
    for(int i = x; i <= n; i += zeros(i))
        AIB[i] += quantity;

}

long long int compute(int x) {
    long long int sum = 0;

    for(int i = x; i > 0; i -= zeros(i))
        sum += AIB[i];

    return sum;
}

int main() {
    //ios::sync_with_stdio(false);

    int m, tmp;
    //cin >> n >> m;
    fscanf(in, "%d %d", &n, &m);

    //int m, tmp;

    for(int i = 1; i <= n; i++) {
        //cin >> tmp;
        fscanf(in, "%d", &tmp);
        add(i, tmp);
    }

    int op, qt, day, st, dr;

    for(int i = 1; i <= m; i++) {
        //cin >> op;
        fscanf(in, "%d", &op);

        if(op == 0) {
            //cin >> day >> qt;
            fscanf(in, "%d %d", &day, &qt);
            add(day, -qt);
        }
        else {
            //cin >> st >> dr;
            fscanf(in, "%d %d", &st, &dr);
            //cout << compute(dr) - compute(st-1) << endl;
            fprintf(out, "%lld", (compute(dr) - compute(st-1)));
        }
    }
}