#include<cstdio>
using namespace std;
int aib[15001];
int n;
void aduna(int ind, int val)
{
	int poz=1;
	while(ind<=n)
	{
		aib[ind]+=val;
		while(!(ind&poz))
			poz<<=1;
		ind+=poz;
	}
}
void scade(int ind, int val)
{
	int poz=1;
	while(ind<=n)
	{
		aib[ind]-=val;
		while(!(ind&poz))
			poz<<=1;
		ind+=poz;
	}
}
int suma(int ind)
{
	int poz=1,sum=0;
	while(ind>0)
	{
		sum+=aib[ind];
		while(!(ind&poz))
			poz<<=1;
		ind-=poz;
	}
	return sum;
}
int main()
{
	int m;
	int i;
	int a,b;
	freopen("datorii.in","r",stdin);
	freopen("datorii.out","w",stdout);
	scanf("%d %d\n",&n,&m);
	for(i=1;i<=n;i++)
	{
		scanf("%d ",&a);
		aduna(i,a);
	}
	for(i=1;i<=m;i++)
	{
		scanf("%d ",&a);
		if(a==0)
		{
			scanf("%d %d\n",&a,&b);
			scade(a,b);
		}
		else
		{
			scanf("%d %d\n",&a,&b);
			printf("%d\n",suma(b)-suma(a-1));
		}
	}
	fclose(stdin);
	fclose(stdout);
	return 0;
}