#include <bits/stdc++.h>
using namespace std;
inline long long read() {
  long long ans = 0, f = 1;
  char ch = getchar();
  while (ch < '0' || ch > '9') {
    if (ch == '-') {
      f = -1;
    }
    ch = getchar();
  }
  while (ch >= '0' && ch <= '9') {
    ans = (ans << 3) + (ans << 1) + (ch ^ 48);
    ch = getchar();
  }
  return ans * f;
}
int n, mi, a[55];
int cnt;
int main() {
  n = read();
  mi = 2147483647;
  for (int i = 1; i <= n; i++) {
    a[i] = read();
    mi > a[i] ? mi = a[i] : 1;
  }
  for (int i = 1; i <= n; i++) {
    a[i] == mi ? cnt++ : 1;
  }
  cnt <= n / 2 ? printf("Alice\n") : printf("Bob\n");
  return 0;
}
