//horatiu11
# include <cstdio>
# define nmax 15001
# define LSB(i) ((-i)&i)
using namespace std;
int n,m,AIB[nmax],poz,val,a,b,op;
inline void update(int val, int poz)
{
    for(int i=poz;i<=n;i+=LSB(i))
        AIB[i]+=val;
}
inline int sum(int poz)
{
    int s=0;
    for(int i=poz;i>0;i-=LSB(i))
        s+=AIB[i];
    return s;
}
int main()
{
    int i;
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;++i)
    {
        scanf("%d",&val);
        update(val,i);
    }
    for(i=1;i<=m;++i)
    {
        scanf("%d",&op);
        switch(op)
        {
            case 0:
                scanf("%d%d",&poz,&val);
                update(-1*val,poz);
                break;
            case 1:
                scanf("%d%d",&a,&b);
                printf("%d\n",sum(b)-sum(a-1));
                break;
        }
    }
    return 0;
}