#include <fstream>
using namespace std;
ifstream in("datorii.in");
ofstream out("datorii.out");
const int NMax = 15005;
int aib[NMax];
int n, m;
void UpdatePlus(int pos, int x)
{
    for(int i = pos; i <= n; i += i&(-i))
    {
        aib[i] += x;
    }
}
void UpdateMinus(int pos, int x)
{
    for(int i = pos; i <= n; i += i&(-i))
    {
        aib[i] -= x;
    }
}
int Sum(int pos)
{
    int s = 0;
    for(int i = pos; i > 0; i -= i&(-i))
    {
        s += aib[i];
    }
    return s;
}
void Read()
{
    in>>n>>m;
    for(int i = 1; i <= n; i++)
    {
        int x;
        in>>x;
        UpdatePlus(i,x);
    }
}
void Solve_and_Print()
{
    while(m--)
    {
        int x,y,opt;
        in>>opt>>x>>y;
        if(opt == 0) UpdateMinus(x,y);
        else
        {
            out<<Sum(y)-Sum(x-1)<<'\n';
        }
    }
}
int main()
{
    Read();
    Solve_and_Print();
    return 0;
}