#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
const ll lim=1000000;
const ll bound=1000000000;

int main(){
	ios_base::sync_with_stdio(false);
	ll s,x;
	cin >> s >> x;
	if (__gcd(s,x)==1){
		cout << 1 << "\n";
		cout << s << "\n";
		return 0;	
	}
	if (s%2==0 || x%2==1){
		for (ll a=-lim;a<=lim;a++){
			ll b=s-a;
			if (abs(a)>bound || abs(b)>bound) continue;
			if (__gcd(abs(a),abs(x))==1 && __gcd(abs(b),abs(x))==1){
				cout << 2 << "\n";
				cout << a << " " << b << "\n";
				return 0;	
			}
		}
	}
	else{
		for (ll a=-lim;a<=lim;a++){
			ll b=s-1-a;
			if (abs(a)>bound || abs(b)>bound) continue;
			if (__gcd(abs(a),abs(x))==1 && __gcd(abs(b),abs(x))==1){
				cout << 3 << "\n";
				cout << 1 << " " << a << " " << b << "\n";
				return 0;	
			}
		}	
	}
	return 0;	
}