#include <cstdio>

int x[2 + 1000000];

int main() {
  freopen("elmaj.in", "r", stdin);
  freopen("elmaj.out", "w", stdout);
  int n;
  scanf("%d", &n);
  int count = 0, sol = 0;
  for (int i = 1; i <= n; i++) {
    scanf("%d", &x[i]);
    if (count == 0) {
      count++;
      sol = x[i];
    } else {
      if (x[i] != sol)
        count--;
      else
        count++;
    }
  }
  int nr = 0;
  for (int i = 1; i <= n; i++)
    if (x[i] == sol)
      nr++;
  if (nr > n / 2)
    printf("%d %d", sol, nr);
  else
    printf("-1");
  return 0;
}