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#include <iostream>
#include <fstream>
#include <string.h>
using namespace std;
ifstream f("parantezare.in");
ofstream g("parantezare.out");
int v[1000001];
int main()
{
int i,n,m,nr=0,p=0;
f>>n;
for(i=1;i<=n;i++)
f>>v[i];
for(i=1;i<=n;i++)
{
if(p==0)
{
p=1;
m=v[i];
}
else
if(m==v[i])
p++;
else
p--;
}
for(i=1;i<=n;i++)
{
if(m==v[i])
nr++;
}
if(nr>=n/2+1)
g<<m<<" "<<nr;
else
g<<-1;
return 0;
}