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