#include <bits/stdc++.h>
using namespace std;
inline long long read() {
  char c = getchar();
  long long x = 0;
  bool f = 0;
  for (; !isdigit(c); c = getchar()) f ^= !(c ^ 45);
  for (; isdigit(c); c = getchar()) x = (x << 1) + (x << 3) + (c ^ 48);
  if (f) x = -x;
  return x;
}
long long n, mn = 0x3f3f3f3f, cnt;
signed main() {
  n = read();
  for (register long long i = (1); i <= (n); ++i) {
    long long x = read();
    if (x < mn)
      mn = x, cnt = 1;
    else if (x == mn)
      ++cnt;
  }
  if (cnt <= n / 2)
    puts("Alice");
  else
    puts("Bob");
  return 0;
}
