#include<cstdio>
#define NMAX 15002
using namespace std;

int aib[NMAX], n, m;

void Update(int val, int x)
{
    while(x <= n)
    {
        aib[x] += val;
        x += x & -x;
    }
}

int suma(int x)
{
    int s = 0;
    while(x)
    {
        s += aib[x];
        x &= x-1;
    }
    return s;
}

int main()
{
    int i, v, a, b, nr;
    FILE *fin, *fout;
    fin = fopen("datorii.in","r");
    fout = fopen("datorii.out","w");
    fscanf(fin,"%d%d",&n,&m);
    for(i=1; i<=n; i++)
    {
        fscanf(fin,"%d",&v);
        Update(v,i);
    }
    for(i=1; i<=m; i++)
    {
        fscanf(fin,"%d%d%d",&nr,&a,&b);
        if(!nr)
            Update(-b,a);
        else
            fprintf(fout,"%d\n",suma(b) - suma(a-1));
    }
    fclose(fin);
    fclose(fout);
    return 0;
}