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#include <bits/stdc++.h>
using namespace std;
ifstream fin("elmaj.in");
ofstream fout("elmaj.out");
const int NMax = 2e8;
int v[NMax], n, ap, el, k;
int main()
{
fin>>n;
for(int i = 0; i < n; i++)
fin>>v[i];
ap = 0;
el = v[0];
for(int i = 1; i <=n; i++)
{
if(el != v[i])
{
ap--;
if(ap == 0)
{
ap ++;
el = v[i];
}
}
else
ap++;
}
ap=0;
for(int i=0; i < n; i++)
if(el == v[i])
ap++;
if(ap > n/2)
fout<<el<<" "<<ap;
else
fout<<-1;
return 0;
}