#include <cstdio>
using namespace std;
int n, aib[150005];
void add(int a, int b){
    for (; a <= n; a += a & -a)
        aib[a] += b;
}
int sum(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 m, op, a, b, i;
    scanf("%d%d", &n, &m);
    for (i = 1; i <= n; i ++){
        scanf("%d", &a);
        add(i, a);
    }
    for (i = 1; i <= m; i ++){
        scanf("%d%d%d", &op, &a, &b);
        if (op == 0)
            add(a, -b);
        else
            printf("%d\n", sum(b) - sum(a - 1));
    }
    return 0;
}