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

void test(){

}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    srand(time(NULL));
    ll S,X;
    cin>>S>>X;
    if(gcd(S,X)==1){
        cout<<1<<endl;
        cout<<S<<endl;
        return 0;
    }
    if(S%2==0||X%2==1){
        ll a,b;
        for(b=1;b<=1e8;b++){
            a=S-b;
            if(gcd(abs(a),X)==1&&gcd(abs(b),X)==1){
                cout<<2<<endl;
                cout<<a<<" "<<b<<endl;
                return 0;
            }
        }
        return 0;
    }
    ll a=1,b,c;
    for(b=1;b<=1e8;b++){
        c=S-a-b;
        if(gcd(abs(a),X)==1&&gcd(abs(b),X)==1&&gcd(abs(c),X)==1){
            cout<<3<<endl;
            cout<<c<<" "<<a<<" "<<b<<endl;
            return 0;
        }
    }
    
}