#include <fstream>

using namespace std;
ifstream fin ("datorii.in");
ofstream fout ("datorii.out");
int A[15001];
int main()
{
    int cod;
    int n, m, a, b;
    fin>>n>>m;
    for (unsigned int i = 1; i <= n; i ++)
        fin>>A[i];
    for (unsigned int i = 1; i <= m; i ++)
    {
        fin>>cod;
        if (cod == 0)
        {
            fin>>a>>b;
            A[a] -= b;
        }
        else
        {
            fin>>a>>b;
            unsigned suma = 0;
            for(unsigned i = a; i <= b; i++)
                suma += A[i];
            fout<<suma<<'\n';
        }
    }
    fin.close();
    fout.close();
    return 0;
}