#include<fstream>

using namespace std;

ifstream cin("datorie.in");
ofstream cout("datorii.out");

int a[15100], n, m, o, p, q;

int sum(int inc, int sf){
	if(inc==sf) return a[inc];
	else if(inc==sf-1) return a[inc]+a[sf];
	else{
		int	mid=(inc+sf)/2;
		return sum(inc, mid)+sum(mid+1, sf);
	}
}

int main(){
	cin>>n>>m;
	for(int i=1;i<=n;i++) cin>>a[i];
	
	for(int i=1; i<=m; i++){
		cin>>o>>p>>q;
		if(o==0) a[p]-=q;
		else if(o==1) cout<<sum(p,q)<<"\n";
	}
	
	
	return 0;
}