#include<iostream>
using namespace std;
class generate 
{
    int num;
    public:
    void getdata();
    void check();
};
void generate::getdata()
{
    cout<<"Enter the number:"<<endl;
    cin>>num;
}
void generate::check()
{
    int n;
    cout<<"Even"<<endl;
    for(int i=1;i<=2*n;i++)
    {
        if(i%2==0)
        cout<<i<<" "<<endl;
    }
    cout<<"Odd"<<endl;
    for(int i=1;i<=2*n;i++)
    {
        if(i%2!=0)
        cout<<i<<" "<<endl;
    }
}
int main()
{
    generate x;
    x.getdata();
    x.check();
    return 0;
}