#include <bits/stdc++.h>
using namespace std;
template <class t>
inline t read(t &x) {
  char c = getchar();
  bool f = 0;
  x = 0;
  while (!isdigit(c)) f |= c == '-', c = getchar();
  while (isdigit(c)) x = (x << 1) + (x << 3) + (c ^ 48), c = getchar();
  if (f) x = -x;
  return x;
}
template <class t, class... A>
inline void read(t &x, A &...a) {
  read(x);
  read(a...);
}
template <class t>
inline void write(t x) {
  if (x < 0)
    putchar('-'), write(-x);
  else {
    if (x > 9) write(x / 10);
    putchar('0' + x % 10);
  }
}
const int N = 55;
int n, a[N], cnt;
signed main() {
  read(n);
  for (int i = 1; i <= n; i++) read(a[i]);
  sort(a + 1, a + 1 + n);
  for (int i = 1; i <= n; i++) cnt += a[i] == a[1];
  if (cnt > n / 2)
    puts("Bob");
  else
    puts("Alice");
}
