#include <fstream>
#define dim 15001
using namespace std;
int n, m, i, a, b, t;
int A[dim];
ifstream fin ("datorii.in");
ofstream fout ("datorii.out");
int LSB (int x)
{
    return (x^(x-1))&x;
}
void update (int x, int d)
{
    while (x<=n)
    {
        A[x]+=d;
        x+=LSB(x);
    }
}

int query (int x)
{
    int sum =0;
     while (x>0)
        {
            sum+=A[x];
            x-=LSB(x);
        }
    return sum;
}

int main () {
    fin>>n>>m;
    for (i=1;i<=n;i++) {
        fin>>a;
        update(i, a);
    }
    for (i=1;i<=m;i++) {
        fin>>t;
        if (t==0) {
            fin>>a>>b;
            update(a, -b);
        } else if (t==1){
            fin>>a>>b;
            fout<<query(b)-query(a-1)<<"\n";
        }
    }

    return 0;
}