#include<fstream.h>
ifstream fin("datorii.in");
ofstream fout("datorii.out");
int n,m,d,tp,qv,i,j,v[15001];
int sum(int k)
{
	int c=0,s=0;
	while(c<k)
	{
		c++;
		s=s+v[c];
	}
	return s;
}
int main()
{
	fin>>n>>m;
	for(i=1;i<=n;i++)
		fin>>v[i];
	for(i=1;i<=m;i++)
	{
		fin>>d>>tp>>qv;
		if(d==1)
			fout<<sum(qv)-sum(tp-1)<<'\n';
		else
			v[tp]=v[tp]-qv;
	}
	return 0;
}