#include<bits/stdc++.h>
using namespace std;
int s,x;
int exgcd(int a,int b,int &x,int &y){
    if(!b){
        x=1; y=0;
        return a;
    }
    int d=exgcd(b,a%b,y,x);
    y-=a/b*x;
    return d;
}
pair<int,int> get(int a,int m1,int b,int m2){
    // if(m1==1) return make_pair(b,m2);
    int x,y;
    exgcd(m1,m2,x,y);
    x=(x%m2+m2)%m2;
    y=(y%m1+m1)%m1;
    // printf("%d %d\n",x,y);
    int M=m1*m2,V=(1ll*a*y*m2+1ll*b*x*m1)%M;
    return make_pair(V,M);
}
int crt(vector<int> &v,vector<int> &m){
    int V=0,M=1;
    for(int i=0;i<v.size();i++){
        // printf("v,m: %d %d\n",v[i],m[i]);
        auto [vv,mm]=get(V,M,v[i],m[i]);
        V=vv; M=mm;
        // printf("V,M: %d %d\n",V,M);
    }
    return V;
}
int main()
{
    scanf("%d%d",&s,&x);
    if (__gcd(s,x)==1)
    {
        printf("1\n%d",s);
        return 0;
    }
    int ox=x;
    vector<int> v,u;
    for (int i=2;i<=40000;++i)
        if (x%i==0)
        {
            v.push_back(i);
            while (x%i==0)
                x/=i;
        }
    if (x!=1)
        v.push_back(x);
    x=ox;
    if (s%2==1&&x%2==0)
    {
        printf("3\n");
        --s;
        printf("1 ");
    }
    else 
        printf("2\n");
    for (int z:v)
        if (s%z==1)
            u.push_back(2);
        else
            u.push_back(1);
    int o=crt(u,v);
    printf("%d %d\n",o,s-o);
    return 0;
}