#include<cstdio>
#define zeros(i) (i&(-i))
using namespace std;
//Costin Oncescu E urat
int aib[15002],x,i,n,m,op,pos,val,st,dr;

void add(int pos,int val)
{
    int i;
    for(i=pos;i<=n;i+=zeros(i))
    {
        aib[i]+=val;
    }
}
//Costin Oncescu E urat
int computionare(int pos)
{
    int i,valeur=0;
    for(i=pos;i>=1;i-=zeros(i))
    {
        valeur+=aib[i];
    }
    return valeur;
}
//Costin Oncescu E urat
int main()
{
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&x);
        add(i,x);
    }
    for(i=1;i<=n;i++)
    {
        scanf("%d",&op);
        if(op==0)
        {
            scanf("%d%d",&pos,&val);
            add(pos,-val);
        }
        if(op==1)
        {
            scanf("%d%d",&st,&dr);
            printf("%d\n",computionare(dr)-computionare(st-1));
        }
    }
}
//Costin Oncescu E urat