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