#include <bits/stdc++.h>
using namespace std;
using VS = vector<string>;
using LL = long long;
using VI = vector<int>;
using VVI = vector<VI>;
using PII = pair<int, int>;
using PLL = pair<LL, LL>;
using VL = vector<LL>;
using VVL = vector<VL>;
const int INF = 1e9;
const LL LINF = 1e16;
const LL MOD = 1000000007;
const double PI = acos(-1.0);
int DX[8] = {0, 0, 1, -1, 1, 1, -1, -1};
int DY[8] = {1, -1, 0, 0, 1, -1, 1, -1};
LL N;
LL ans = 0LL;
int main() {
  cin.tie(0);
  ios_base::sync_with_stdio(false);
  LL P, Q;
  cin >> N >> P >> Q;
  VL c(N);
  for (int(i) = (0); (i) < (N); (i)++) {
    cin >> c[i];
  }
  cout << ans << "\n";
  return 0;
}
