#include <cstdio>

using namespace std;

int n, m;

class ArboreIndexatBinar
{
private:
    int aib[15050];

    int gasirePutere(int x)
    {
        return ((x ^ (x - 1)) & x);
    }

    int sum(int x)
    {
        int suma = 0;

        for(int k = x; k >= 1; k -= gasirePutere(k))
        {
            suma += aib[k];
        }

        return suma;
    }

public:

    void citire()
    {
        scanf("%d %d", &n, &m);

        for(int i = 1; i <= n; i++)
        {
            int tmp;

            scanf("%d", &tmp);

            for(int k = i; k <= n; k += gasirePutere(k))
            {
                aib[k] += tmp;
            }
        }
    }

    void achitare(int zi, int valoare)
    {
        for(int k = zi; k <= n; k += gasirePutere(k))
        {
            aib[k] -= valoare;
        }
    }

    int interogare(int st, int dr)
    {
        return sum(dr) - sum(st - 1);
    }
};

int main()
{
    freopen("datorii.in", "r", stdin);
    freopen("datorii.out", "w", stdout);

    ArboreIndexatBinar arb;
    arb.citire();

    int opt;
    int par1, par2;

    for(int i = 0; i < n; i++)
    {
        scanf("%d %d %d", &opt, &par1, &par2);

        switch(opt)
        {
            case 0:
                arb.achitare(par1, par2);
                break;
            case 1:
                printf("%d\n", arb.interogare(par1, par2));
                break;
        }
    }

    return 0;
}