#include <fstream>

using namespace std;

ifstream fin("datorii.in");
ofstream fout("datorii.out");

int n,aib[15001],m,cif,a,b,x;

void adun(int x,int val)
{
    int i;
    for(i=x; i<=n; i+=i&(-i))
        aib[i]+=val;
}

int suma(int x)
{
    int s=0,i;
    for(i=x; i>=1; i-=i&(-i))
        s+=aib[i];
    return s;
}

int main()
{
    int i;
    fin>>n>>m;
    for(i=1; i<=n; i++)
        fin>>x,adun(i,x);
    for(i=1; i<=m; i++)
    {
        fin>>cif>>a>>b;
        if(cif==0) adun(a,-b);
        else fout<<suma(b)-suma(a-1)<<'\n';
    }
    return 0;
}