# include <bits/stdc++.h>

inline int gcd(int a,int b){
	return (!b)?a:gcd(b,a%b);
}

int main(void){
	int s,x;
	std::cin>>s>>x;
	
	int g=gcd(s,x);
	
	if(g==1){
		printf("1\n%d",s);
		return 0;
	}
		
	std::vector <int> vec(4);
	
	for(int i=-200000;i<=200000;++i){
		int a=i,b=s-i;
		
		if(abs(a)>1e9||abs(b)>1e9) continue;
		
		if(gcd(abs(a),x)==1&&gcd(abs(b),x)==1){
			printf("2\n%d %d",a,b);
			exit(0);
		}
		
		a=s-i-1,b=i;
		
		if(abs(a)>1e9||abs(b)>1e9) continue;
		
		if(gcd(abs(a),x)==1&&gcd(abs(b),x)==1){
			vec.resize(3);
			vec[0]=a,vec[1]=b,vec[2]=1;
		}
	}
	
	assert(vec.size()==3);
	
	printf("3\n%d %d %d",vec[0],vec[1],vec[2]);
	
	return 0;
}