#include <iostream>
#include <string>
using namespace std;

int m1,m2;

int main()
{
    cin>>m1>>m2;
    cout<<"2\n";
    cout<<m1<<" "<<m2<<"\n";
    m1*=2;m2*=2;
    cout<<m1<<" "<<m2<<"\n";
    return 0;
}