#include<bits/stdc++.h>
using namespace std;
#ifdef DEBUG
#include"debug.h"
#else
#define debug(...) void()
#endif
#define all(x) (x).begin(),(x).end()
template<class T>
auto ary(T *a,int l,int r){
	return vector<T>{a+l,a+1+r};
}
using ll=long long;
using ull=unsigned long long;
int s,x;
int main(){
	cin>>s>>x;
	if(__gcd(s,x)==1)cout<<1<<endl<<s<<endl,exit(0);
	mt19937 rnd(time(0));
	int V=1e8;
	if(s%2==1&&x%2==0){
		int a,b,c;
		do a=2*(rnd()%V)+1,b=2*(rnd()%V)+1,c=s-a-b;while(__gcd(a,x)>1||__gcd(b,x)>1||__gcd(abs(c),x)>1);
		cout<<3<<endl<<a<<' '<<b<<' '<<c<<endl;
		exit(0);
	}
	int a,b;
	do a=rnd()%V+1,b=s-a;while(__gcd(a,x)>1||__gcd(abs(b),x)>1);
	cout<<2<<endl<<a<<' '<<b<<endl;
	return 0;
}
#ifdef DEBUG
#include"debug.hpp"
#endif