#include<cstdio>

#define zeros(x) (x & (-x))

const int nmax=15005;

int aib[nmax],n,m;

inline void add(int x,int val)
{
    int i;
    for(i=x;i<=n;i+=zeros(i))
        aib[i]+=val;
}

inline void scad(int x,int val)
{
    int i;
    for(i=x;i<=n;i+=zeros(i))
        aib[i]-=val;
}

inline int sum(int x)
{
    int i,r=0;
    for(i=x;i;i-=zeros(i))
        r+=aib[i];
    return r;
}

int main()
{
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);
    int i,x,y,op;
    scanf("%d%d",&n,&m);
    for(i=1;i<=n;i++)
    {
        scanf("%d",&x);
        add(i,x);
    }
    for(i=1;i<=m;i++)
    {
        scanf("%d%d%d",&op,&x,&y);
        if(op==0)
            scad(x,y);
        else
            printf("%d\n",sum(y)-sum(x-1));
    }
}