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#include <bits/stdc++.h>
using namespace std;
ifstream f("elmaj.in");
ofstream g("elmaj.out");
const int N = 1000010;
int n,v[N],el,cnt;
int main()
{
f >> n;
for( int i=1 ; i<=n ; i++)
{
f>>v[i];
if(cnt==0)
{
el=v[i];
cnt++;
}
else
if(v[i]==el)
cnt++;
else
cnt--;
}
cnt=0;
for(int i=1;i<=n;i++)
if(v[i]==el)
cnt++;
if(cnt>n-cnt)
g<<el<<' '<<cnt<<'\n';
else
g<<"-1\n";
return 0;
}
int cmmdc(int a,int b,int &x,int &y)
{
if(b==0){x = 1 ; y = 0 ; return a;}
int X,Y,D;
D=cmmdc(b,a%b,X,Y);
x=Y;
y=X-a/b*Y;
return D;
}