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#include <bits/stdc++.h>
using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
const int nx=1000002;
int n,v[nx],x,ap;
int e;
int main()
{
in>>n;
for(int i=1; i<=n; i++)
in>>v[i];
x=v[1];
ap=1;
for(int i=2; i<=n; i++)
{
if(v[i]==x) ap++;
else
{
ap--;
if(ap==0)
{
x=v[i];
ap=1;
}
}
}
ap=0;
for(int i=1; i<=n; i++)
if(v[i]==x) ap++;
if(ap>=(n/2 +1)) out<<x<<' '<<ap;
else out<<-1;
return 0;
}