#include "bits/stdc++.h"

using namespace std;

using ll = long long;
using ld = long double;

#define all(x) (x).begin(), (x).end()

ll gcd(ll x, ll y) {
  while (x) {
    y %= x;
    swap(x, y);
  }
  return x + y;
}

int main() {
  ios_base::sync_with_stdio(false);

  ll s, x;
  cin >> s >> x;

  if (gcd(s, x) == 1) {
    cout << "1\n" << s << "\n";
    return 0;
  }

  if (x % 2 == 0 && s % 2 == 1) { // 3
    cout << "3\n";
    for (ll k = 0; ; ++k)
      if (gcd(k, x) == 1 && gcd(s - 1 - k, x) == 1) {
        cout << s - k - 1 << " " << (k) << " 1\n";
        return 0;
      }
  } else {
    for (ll k = 0; ; ++k) {
      if (gcd(k, x) == 1 && gcd(s - k, x) == 1) {
        cout << "2\n";
        cout << s - k << " " << (k) << "\n";
        return 0;
      }
    }
  }

  return 0;
}