#include<iostream>
#include<cstring>
#include<vector>
#include<numeric>
#include<cassert>
using namespace std;
using LL = long long;

int main(){

#ifdef LOCAL
    freopen("data.in", "r", stdin);
    freopen("data.out", "w", stdout);
#endif

    cin.tie(0);
    cout.tie(0);
    ios::sync_with_stdio(0);

    int s, x;
    cin >> s >> x;

    auto get = [&](auto &&get, int s, int x) -> vector<int> {
        if (gcd(s, x) == 1) return {s};
        if (x % 2 == 0 and s % 2 != 0){
            auto ans = get(get, s + 1, x);
            ans.push_back(-1);
            return ans;
        }
        for(int i = 1; ; i++){
            if (gcd(i, x) == 1 and gcd(abs(s - i), x) == 1){
                vector<int> ans{i, s - i};
                return ans;
            }
        }
        assert(false);
    };

    auto ans = get(get, s, x);
    cout << ans.size() << '\n';
    for(auto x : ans) cout << x << ' ';
    cout << '\n';

}