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#include <iostream>
#include <fstream>
using namespace std;
const int dim = 1000005;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
int n,a[dim];
int main()
{
int i,j,cand = -1,k = 0;
in >> n;
for (i=1; i<=n; i++)
{
in >> a[i];
}
for (i=1; i<=n; i++)
{
if (k == 0)
{
cand = a[i];
k = 1;
}
else
{
if (cand == a[i])
{
k++;
}
else
{
k--;
}
}
}
int cnt = 0;
for (i=1; i<=n; i++)
{
if (a[i] == cand)
{
cnt++;
}
}
if (cnt > n/2)
{
out << cand << " " << cnt;
}
else out << -1;
return 0;
}