#include<cstdio>
#define LSB(x) ((-x ) & x)
using namespace std;
int AIB[50001],n,m;
void UpDate1(int x,int val)
{
    for (int i=x;i<=n;i+=LSB(i))
        AIB[i]+=val;
}
void UpDate2(int x,int val)
{
    for (int i=x;i<=n;i+=LSB(i))
        AIB[i]-=val;
}
int Sum(int x)
{
    int s=0;
    for (int i=x;i>0;i-=LSB(i))
        s+=AIB[i];
    return s;
}
int main()
{
    int i,x,op,y;
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d%d",&n,&m);
    for (i=1;i<=n;++i)
    {
        scanf("%d",&x);
        UpDate1(i,x);
    }
    for (i=1;i<=m;++i)
    {
        scanf("%d%d%d",&op,&x,&y);
        if (op==0)
        {
            UpDate2(x,y);
        }
        else
        {
            if (x>=1) printf("%d\n",Sum(y)-Sum(x-1));
                else printf("%d\n",Sum(y));
        }
    }
    return 0;
}