#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;

#define eb emplace_back
#define all(s) (s).begin(), (s).end()
#define rep(i, a, b) for (int i = (a); i <= (b); ++i)
#define per(i, a, b) for (int i = (a); i >= (b); --i)

inline int gcd(int a, int b) {return b ? gcd(b, a % b) : a;}

inline int rd() {
	int x = 0;
	bool f = 0;
	char c = getchar();
	for (; !isdigit(c); c = getchar()) f |= (c == '-');
	for (; isdigit(c); c = getchar()) x = x * 10 + (c ^ 48);
	return f ? -x : x;	
}

int main() {
	int s = rd(), x = rd();
	if (gcd(s, x) == 1) {printf("1\n%d", s); return 0;}
	rep(i, 1, 100000) {
		int a = i, b = s - a;
		if (gcd(a, x) == 1 && gcd(abs(b), x) == 1) {
			printf("2\n%d %d", a, b); return 0;
		}
	}
	rep(i, 1, 100000) {
		int a = i, b = s - a - 1;
		if (gcd(a, x) == 1 && gcd(abs(b), x) == 1) {
			printf("3\n%d %d %d", a, b, 1); return 0;
		}
	}
	return 0;
}