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#include <iostream>
#include <fstream>
using namespace std;
int main()
{
ifstream f("elmaj.in"); ofstream g("elmaj.out");
int n,i,k,x,a[100010];
f>>n;
for(i=0;i<n;i++)
{
f>>a[i];
}
x=a[0];
k=1;
for(i=1;i<n;i++)
{
if (k==0) {k=1; x=a[i];}
else if(x==a[i]) {k++;} else k--;
}
k=0;
for(i=0;i<n;i++) if (a[i]==x) {k++;}
if (k>=n/2+1) {g<<x<<' '<<k;} else g<<-1;
return 0;
}