#include<cstdio>
#define MAX_N 1000000
using namespace std;

int v[MAX_N], n;

int main() {
    int i, candidat, ap;
    FILE *fin, *fout;
    fin = fopen("elmaj.in","r");
    fout = fopen("elmaj.out","w");
    fscanf(fin,"%d",&n);
    for(i = 0; i < n; i++)
        fscanf(fin,"%d",&v[i]);
    candidat = v[0];
    ap = 1;
    for(i = 1; i < n; i++) {
        if(v[i] == candidat)
            ap++;
        else if(ap)
            ap--;
        else {
            candidat = v[i];
            ap = 1;
        }
    }
    for(ap = 0, i = 0; i < n; i++)
        if(v[i] == candidat)
            ap++;
    if(ap > n / 2)
        fprintf(fout,"%d %d\n",candidat,ap);
    else fprintf(fout,"-1\n");

    fclose(fin);
    fclose(fout);
    return 0;
}