#include <bits/stdc++.h>
using namespace std;

ifstream fin("distincte.in");
ofstream fout("distincte.out");

int Lbuck;

struct Query
{
    int l, r, orig;

    bool operator < (const Query &other) const
    {
        if(l / Lbuck == other.l / Lbuck)
            return r < other.r;
        return l / Lbuck < other.l / Lbuck;
    }
}queries[100005];

long long sol;
int v[100005];

int fv[100005];

long long ans[100005];

void ADD(int poz)
{
    fv[v[poz]]++;

    if(fv[v[poz]] == 1)
        sol += v[poz];
}

void DEL(int poz)
{
    fv[v[poz]]--;

    if(fv[v[poz]] == 0)
        sol -= v[poz];
}

int main()
{
    int N, M, K;

    fin >> N >> K >> M;

    Lbuck = sqrtl(N);

    for(int i = 1; i <= N; i++)
        fin >> v[i];

    for(int i = 1; i <= M; i++)
    {
        fin >> queries[i].l >> queries[i].r;

        queries[i].orig = i;
    }

    sort(queries + 1, queries + M + 1);

    int st = 1, dr = 0;

    for(int i = 1; i <= M; i++)
    {
        int l = queries[i].l;
        int r = queries[i].r;

        while(st < l)
            DEL(st), st++;

        while(dr > r)
            DEL(dr), dr--;

        while(dr < r)
            dr++, ADD(dr);

        while(st > l)
            st--, ADD(st);

        ans[queries[i].orig] = sol;
    }

    for(int i = 1; i <= M; i++)
        fout << ans[i] << '\n';
    return 0;
}