#include<cstdio>
using namespace std;
int v[1000001];
int main()
{
    freopen("elmaj.in","r",stdin);
    freopen("elmaj.out","w",stdout);
    int n,i,ap,c;
    scanf("%d",&n);
    for(i=1;i<=n;i++)
        scanf("%d",&v[i]);
    ap=1;c=v[2];
    for(i=2;i<=n;i++)
        if(v[i]==c)
            ap++;
        else
        {
            ap--;
            if(ap==0)
            {
                c=v[i];
                ap=1;
            }
        }
    ap=0;
    for(i=1;i<=n;i++)
        if(v[i]==c)
            ap++;
    if(ap>=n/2+1)
        printf("%d %d",c,ap);
    else
        printf("-1");
    return 0;
}