#include <bits/stdc++.h>
using namespace std;
inline int read() {
  int res = 0, f = 1;
  char ch = getchar();
  while (ch < '0' || ch > '9') {
    if (ch == '-') f = -f;
    ch = getchar();
  }
  while (ch >= '0' && ch <= '9') {
    res = (res << 3) + (res << 1) + ch - '0';
    ch = getchar();
  }
  return res * f;
}
const int N = 55;
int n, Mn, cnt;
int main() {
  n = read();
  Mn = 1e7;
  for (int i = 1; i <= n; i++) {
    int x = read();
    if (x < Mn)
      Mn = x, cnt = 1;
    else if (x == Mn)
      cnt++;
  }
  puts(cnt <= n / 2 ? "Alice" : "Bob");
  return 0;
}
