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