#include<bits/stdc++.h>
#define ll long long
#define ull unsigned ll
#define log(x) (31^__builtin_clz(x))
#define lowbit(x) (x&-x)
#define pii pair<int,int>
using namespace std;
bool check(ll x,ll y){
	return __gcd(abs(x),abs(y))==1;
}
void solve(){
	ll s,x;
	cin>>s>>x;
	if(check(s,x)){
		cout<<"1\n"<<s<<"\n";
		return;
	}
	for(int i=1;i<=x;i++){
		if(check(i,x)&&check(s-i,x)){
			cout<<"2\n"<<i<<" "<<s-i<<"\n";
			return;
		}
	}
	for(int i=1;i<=x;i++){
		if(!check(i,x))continue;
		for(int j=1;j<=x;j++){
			if(check(j,x)&&check(s-i-j,x)){
				cout<<"3\n"<<i<<" "<<j<<" "<<s-i-j<<"\n";
				return;
			}
		}
	}
	for(int i=1;i<=x;i++){
		if(!check(i,x))continue;
		for(int j=1;j<=x;j++){
			if(!check(j,x))continue;
			for(int k=1;k<=x;k++){
				if(check(k,x)&&check(s-i-j-k,x)){
					cout<<"4\n"<<i<<" "<<j<<" "<<k<<" "<<s-i-j-k<<"\n";
					return;
				}
			}
		}
	}
	assert(0);
}
int main(){
	ios::sync_with_stdio(0);cin.tie(0);
	int t=1;
	// cin>>t;
	while(t--)solve();
}
/*
x
y
*/