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