#include <bits/stdc++.h>
using namespace std;
int n;
int main() {
  scanf("%d", &n);
  int minx = 55, nc = 1;
  for (int i = 0; i < n; i++) {
    int x;
    scanf("%d", &x);
    if (x < minx) {
      minx = x;
      nc = 1;
    } else if (x == minx) {
      nc++;
    }
  }
  if (nc > n / 2) {
    printf("Bob\n");
  } else {
    printf("Alice\n");
  }
  return 0;
}
