#include <stdio.h>
int v[3000000];
int main()
{
    FILE *fin,*fout;
    fin=fopen("elmaj.in","r");
    fout=fopen("elmaj.out","w");
    int n,maj,nrap,i;
    fscanf(fin,"%d",&n);
    for(i=0;i<n;i++)
        fscanf(fin,"%d",&v[i]);
    maj=v[0];
    nrap=1;
    for(i=1;i<n;i++)
    {
        if(v[i]==maj)
            nrap++;
        else
        {
            nrap--;
            if(nrap<0)
            {
                maj=v[i];
                nrap=1;
            }
        }
    }
    if(nrap)
    {
        nrap=0;
        for(i=0;i<n;i++)
        {
            if(v[i]==maj)
                nrap++;
        }
    }
    if(nrap>n/2)
        fprintf(fout,"%d %d\n",maj,nrap);
    else
        fprintf(fout,"-1\n");
    fclose(fin);
    fclose(fout);
    return 0;
}