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

int main(){
	int s, x;
	cin >> s >> x;
	if(gcd(s, x) == 1){
		cout << 1 << endl;
		cout << s << endl;
		return 0;
	}
	if(s % 2 == 1 && x % 2 == 0){
		cout << 3 << endl;
		for(int i = -(1<<20); i <= (1<<20); ++i){
			if(gcd(abs(i), abs(x)) != 1) continue;
			if(s-i-i > 1000000000) continue;
			if(gcd(abs(s-i-i), abs(x)) == 1){
				cout << i << ' ' << i << ' ' << s-i-i << endl;
				return 0;
			}
		}
	}else{
		cout << 2 << endl;
		for(int i = -(1<<20); i <= (1<<20); ++i){
			if(gcd(abs(i), abs(x)) != 1) continue;
			if(s-i > 1000000000) continue;
			if(gcd(abs(s-i), abs(x)) == 1){
				cout << i << ' ' << s-i << endl;
				return 0;
			}
		}
	}
	assert(false);
	return 0;
}