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#include <fstream>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
int i,n,v[1000005],el,cont=0,cont1=0;
int main()
{
f>>n;
for (i=1; i<=n; i++)
{
f>>v[i];
if (cont==0)
el=v[i];
if (v[i]==el)
cont++;
else
cont--;
}
for (i=1; i<=n; i++)
if (v[i]==el) cont1++;
if (cont1>=n/2+1) g<<el<<" "<<cont1;
else
g<<"-1";
return 0;
}