#include <fstream>
#define zeros(t) (t ^ (t-1)) & t
using namespace std;
ifstream ka("datorii.in");
ofstream ki("datorii.out");
 
const int N_MAX = 15000;
 
int aib[N_MAX + 1];
 
int n, m, x, y, c;
 
 
void modifica(int x, int val)
{
    for(int i = x; i <= n; i += zeros(i))
        aib[i] += val;
}
 
int cauta(int a)
{
    int sum = 0;
    for(int i = a; i > 0; i -= zeros(i))
        sum += aib[i];
    return sum;
}
 
int main()
{
    ka >> n >> m;
    for(int i = 1; i <= n; i++)
    {
        ka >> x;
        modifica(i, x);
    }
    for(int i = 1; i <= m; i++)
    {
        ka >> c >> x >> y;
        if(c == 0)
            modifica(x, -y);
        else
        {
            ki << cauta(y) - cauta(x - 1) << '\n';
        }
    }
}