#include<bits/stdc++.h>
using namespace std;
using ll=long long;
constexpr int MOD=998244353;
#define rep(i,n) for(int i=0;i<(int)(n);i++)
#define rep2(i,l,r) for(int i=(l);i<(int)(r);i++)

int main(){
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
  int X,Y;
  cin>>X>>Y;
  switch (X*2+Y){
  case 0:
    cout<<"4\n0 0 0 0"<<endl;
    break;
  case 1:
    cout<<"4\n0 1 1 1"<<endl;
    break;
  case 2:
    cout<<"4\n1 0 0 0"<<endl;
    break;
  case 3:
    cout<<"4\n1 1 1 1"<<endl;
    break;
  }
  int t;
  cin>>t;
  cout<<t<<endl;
}