#include <cstdio>
using namespace std;

int i, c, nr, nr1, n, a[1000005];

int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    scanf("%d",&n);
    for(i=0;i<n;i++) scanf("%d",&a[i]);
    c=0; nr=0;
    for(i=0;i<n;i++)
    {
        if(nr==0)
        { nr=1; c=a[i];}
        else if(c!=a[i]) nr--; else nr++;
    }
    nr1=0;
    for(i=0;i<n;i++)
    {
        if(a[i]==c) nr1++;
    }
    if(nr1>=n/2+1) printf("%d %d",c,nr1);
    else printf("-1");
    return 0;
}