#include <cstdio>
#define NMax 15000

int aib[NMax+1];
int N,M;

void Update(int p, int x)
{
    while(p <= N)
    {
        aib[p] += x;
        p = p + ( p & (-p) );
    }
}

int Query(int p)
{
    int res=0;
    while(p > 0)
    {
        res += aib[p];
        p = p - ( p & (-p) );
    }
    return res;
}

int main(){
    freopen("datorii.in","r",stdin);
    freopen("datorii.out","w",stdout);

    int i,j,cod,x,y;

    scanf("%d %d",&N,&M);
    for(i = 1; i <= N; ++i)
    {
        scanf("%d",&x);
        Update(i,x);
    }

    for(i = 1; i <= M; ++i)
    {
        scanf("%d %d %d",&cod,&x,&y);
        if(cod==0) Update(x,-y);
        else printf("%d\n", Query(y) - Query(x-1) );
    }



return 0;
}