#include <bits/stdc++.h>
using namespace std;
#define pi 3.14159265358979323846
#define int long long
const int INF = 0x3f3f3f3f;
const int MOD = 998244353;
const int N = 200005;

void solve()
{
    int s,x;
    cin >> s >> x;
    if(__gcd(s,x) == 1){
        cout << 1 << "\n";
        cout << s ;
        return ; 
    }
    if(s % 2 == 0){
        cout << 2 << "\n";
    }
    else{
        cout << 3 << "\n";
        s--;
        cout << 1 << " ";
    }
        int n = 0;
        while(true){
            if(__gcd(x, s-(n*x-1)) == 1){
                cout << n*x-1 << " " << s-(n*x-1) << "\n";
                return ;
            }
            if(__gcd(x, s-(n*x+1)) == 1){
                cout << n*x+1 << " " << s-(n*x+1) << "\n";
                return ;
            }
            int m = -1*n;
            if(__gcd(x, s-(m*x-1)) == 1){
                cout << m*x-1 << " " << s-(m*x-1) << "\n";
                return ;
            }
            if(__gcd(x, s-(m*x+1)) == 1){
                cout << m*x+1 << " " << s-(m*x+1) << "\n";
                return ;
            }
            n++;
        }
}


signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
   // cin >> t;
    while (t--)
    {
        solve();
    }
}