#include <fstream>
#define zeros(x) ( (x ^ (x - 1)) & x )
using namespace std;
ifstream f("datorii.in");
ofstream g("datorii.out");
int AIB[100001],val,i,n,mij,m,a,u,x,y;
void Add(int x, int quantity)
{
    int i;

    for (i = x; i <= n; i += zeros(i))
        AIB[i] += quantity;
}

int Compute(int x)
{
    int i, ret = 0;

    for (i = x; i > 0; i -= zeros(i))
        ret += AIB[i];
    return ret;
}
int main()
{
    f>>n>>m;
    for (i=1;i<=n;i++)
    {
        f>>a,Add(i,-a);
    }
    for (i=1;i<=m;i++)
    {
        f>>u>>x>>y;
        if (u==1)
            g<<Compute(x-1)-Compute(y)<<'\n';
        else Add(x,y);
    }
    return 0;
}