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#include <iostream>
#include <fstream>
using namespace std;
ifstream in("elmaj.in");
ofstream out("elmaj.out");
int v[1000001];
int main()
{
int n,c,cnt;
in>>n>>v[1];
cnt=1;
c=v[1];
for(int i=2;i<=n;i++)
{
in>>v[i];
if(v[i]==c)
cnt++;
else
cnt--;
if(cnt<0)
{
cnt=1;
c=v[i];
}
}
if(cnt<0)
{
out<<"-1";
return 0;
}
else
{
cnt=0;
for(int i=1;i<=n;i++)
{
if(v[i]==c)
cnt++;
}
if(cnt>=n/2)
out<<c<<" "<<cnt;
return 0;
}
out<<"-1";
return 0;
}