/*
                    __
                   /\ \
 _ __   ___     ___\ \ \/'\     ___      __      ___     ___      __
/\`'__\/ __`\  /'___\ \ , <    / __`\  /'__`\  /' _ `\ /' _ `\  /'__`\
\ \ \//\ \L\ \/\ \__/\ \ \\`\ /\ \L\ \/\ \L\.\_/\ \/\ \/\ \/\ \/\ \L\.\_
 \ \_\\ \____/\ \____\\ \_\ \_\ \____/\ \__/.\_\ \_\ \_\ \_\ \_\ \__/.\_\
  \/_/ \/___/  \/____/ \/_/\/_/\/___/  \/__/\/_/\/_/\/_/\/_/\/_/\/__/\/_/


*/

#ifndef __AHA__HEADER
#define __AHA__HEADER

#include <bits/stdc++.h>
using namespace std;
#define g0 get<0>
#define g1 get<1>
#define g2 get<2>
#define ft first
#define sd second
#define sz(x) (i6) x.size()
#define psb(x) push_back(x)
#define ppb() pop_back()
#define bg(x) x.begin()
#define ed(x) x.end()
#define col(x) x.begin(), x.end()
#define srt(x) sort(x.begin(), x.end())

#define pq priority_queue
#define fn function
#ifdef LOCAL
#define git stauDBG_MACRO_NO_WARNING
#include <dbg.h>
#else
#define dbg(...)
#endif
#define endl '\n'

template <typename T>
using vec = vector<T>;
template <typename T>
using deq = deque<T>;
template <typename K, typename V>
using hmap = unordered_map<K, V>;

using str = string;
using vb = vec<bool>;

using byte = int8_t;
using i3 = int32_t;
using i6 = int64_t;
using i64 = int64_t;
using u3 = uint32_t;
using u6 = uint64_t;

using d6 = long double;

using p3 = pair<i3, i3>;
using vi3 = vec<i3>;
using vp3 = vec<p3>;

using p6 = pair<i6, i6>;
using vi6 = vec<i6>;
using vd6 = vec<d6>;
using vp6 = vec<p6>;
using vv = vec<vi6>;

using dp6 = deq<p6>;
using di6 = deq<i6>;

using mi6 = map<i6, i6>;
using mp6 = map<p6, i6>;
using si6 = set<i6>;
using hi6 = hmap<i6, i6>;

using bs = bitset<64>;

using graph = vv;
using matrix = vv;

const d6 EPS = 1 / 1000000.0;
const i6 ZERO = 0;
const i6 _0 = ZERO;
const i6 ONE = 1;
const i6 _1 = ONE;
const i6 INF = INT64_MAX / 4;
const i6 NINF = -INF;

namespace std {
template <typename T1, typename T2>
struct hash<pair<T1, T2>> {
  std::size_t operator()(const pair<T1, T2>& pair) const noexcept {
    return hash<T1>()(pair.first) ^ hash<T2>()(pair.second);
  }
};
}  // namespace std

template <typename T1, typename T2>
istream& operator>>(istream& stream, pair<T1, T2>& p) {
  stream >> p.ft;
  stream >> p.sd;
  return stream;
}

template <typename T1, typename T2>
ostream& operator<<(ostream& stream, const pair<T1, T2>& p) {
  return stream << p.ft << " " << p.sd;
}

template <typename T>
istream& operator>>(istream& stream, vec<T>& v) {
  if (v.empty()) {
    u6 len;
    stream >> len;
    v.assign(len, T());
  }
  for (auto i = 0; i < sz(v); i++) {
    stream >> v[i];
  }
  return stream;
}

template <typename T>
ostream& operator<<(ostream& stream, const vec<T>& v) {
  if (!v.empty()) {
    stream << v[0];
  }
  for (auto i = 1; i < sz(v); i++) {
    stream << " " << v[i];
  }
  return stream;
}

template <typename T>
istream& operator>>(istream& stream, deq<T>& v) {
  if (v.empty()) {
    u6 len;
    stream >> len;
    v.assign(len, T());
  }
  for (auto i = 0; i < sz(v); i++) {
    stream >> v[i];
  }
  return stream;
}

template <typename T>
ostream& operator<<(ostream& stream, const deq<T>& v) {
  if (!v.empty()) {
    stream << v[0];
  }
  for (auto i = 1; i < sz(v); i++) {
    stream << " " << v[i];
  }
  return stream;
}
#endif

i64 v[100001];
i64 seen_at[100001];
i64 res[100001];

struct question {
  i64 x = 0, y = 0, idx = 0;
};

bool cmp(question& a, question& b) {
  if (a.y == b.y) {
    return (a.x < b.x);
  }
  return (a.y < b.y);
}

class fentree {
 private:
  vi6 f;
  i64 len;

  i64 weirdThing(i64 x) { return (x & (-x)); }

  i64 sum(i64 idx) {
    idx++;
    i64 ans = 0;
    while (idx > 0) {
      ans += f[idx];
      idx -= weirdThing(idx);
    }
    return ans;
  }

 public:
  fentree(i64 n) {
    len = n + 1;
    f.assign(n + 1, 0);
  }

  void update(i64 idx, i64 val) {
    idx++;
    while (idx < len) {
      f[idx] += val;
      idx += weirdThing(idx);
    }
  }

  i64 query(i64 from, i64 to) { return sum(to) - sum(from - 1); }
};

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  // #ifdef LOCAL
  // ifstream cin{"input.txt"};
  // ofstream cout{"output.txt"};
  ifstream cin{"distincte.in"};
  ofstream cout{"distincte.out"};
  // #endif

  i64 n, k, m;
  cin >> n >> k >> m;

  for (i64 i = 0; i < n; i++) {
    cin >> v[i];
    seen_at[v[i]] = -1;
  }

  vector<question> q(m);
  for (i64 i = 0; i < m; i++) {
    cin >> q[i].x >> q[i].y;
    q[i].x--, q[i].y--;
    q[i].idx = i;
  }
  sort(q.begin(), q.end(), cmp);

  fentree f(n);

  i64 idx = 0;
  for (i64 i = 0; i < n; i++) {
    if (seen_at[v[i]] != -1) {
      f.update(seen_at[v[i]], -v[i]);
    }
    f.update(i, v[i]);
    seen_at[v[i]] = i;

    while (idx < m && q[idx].y == i) {
      res[q[idx].idx] = f.query(q[idx].x, q[idx].y);

      idx++;
    }
  }

  for (i64 i = 0; i < m; i++) {
    cout << res[i] << endl;
  }

  return 0;
}