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#include <iostream>
#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int N,V[1000010];
int Nr;
int C=-1;
int Rezolvare()
{
int k=0;
for(int i=0;i<N;++i)
{
if(k==0)
{
C=V[i];
k=1;
}
else if(V[i]==C)
k++;
else
k--;
}
if(C<0)
return C;
for(int i=0;i<N;++i)
if(V[i]==C)
Nr++;
if(Nr>N/2)
return Nr;
else
return -1;
}
int main()
{
f>>N;
for(int i=0;i<N;++i)
f>>V[i];
int x=Rezolvare();
if(x<0)
g<<x;
else
g<<C<<" "<<x;
return 0;
}