#include<iostream>
#include<fstream>
using namespace std;
int main ()
{
	ifstream fin ("datorii.in");
	ofstream fout ("datorii.out");
	int n, m, A[15000], i, j, k, l,s;
	fin>>n>>m;
	for (i=1;i<=n;i++)
		fin>>A[i];
	for(i=1;i<=m;i++)
	{ fin>>j;
	  if (j==1)
	  { fin>>k>>l; s=0;
	    for (k; k<=l;k++)
			s+=A[k];
		fout<<s<<endl;
	  }
	  else
	  { fin>>k>>l; 
	    A[k]=A[k]-l;
	  }
	}
	fin.close();
	fout.close();
	return 0;
}