#include <cstdio>
#define ub(x) (x&(-x))
using namespace std;
int a[15010],A[15010],x,y,i,instr,n,m;
void add(int poz,int val)
{
    int i;
    for (i=poz; i<=n; i+=ub(i))
        A[i]+=val;
    return ;
}
int sum(int x)
{
    int i,s=0;
    for (i=x; i>=1; i-=ub(i))
        s+=A[i];
    return s;
}
int main()
{
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d %d\n",&n,&m);
    for (i=1; i<=n; i++)
    {
        scanf("%d ",&x);
        add(i,x);
    }
    for (i=1; i<=m; i++)
    {
        scanf("%d %d %d\n",&instr,&x,&y);
        if (instr==0)
        {
            add(x,-y);
        }
        else
        {
            printf("%d\n",sum(y)-sum(x-1));
        }
    }
    return 0;
}