using namespace std;
int main(){
	int a,b;
	cin>>a>>b;
	cout<<(4*a-b)/2<<endl<<(b-2*a)/2;
	return 0;
}

套公式

#include<iostream>
using namespace std;
int main(){
	int x,y;
	cin>>x>>y;
	cout<<x-(y/2-x)<<endl;
	cout<<y/2-x;
	return 0;
}

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#include<iostream>
using namespace std;
int main(){
	int x,y;
	cin>>x>>y;
	cout<<x-(y/2-x)<<endl;
	cout<<y/2-x;
	return 0;
}

#include<iostream>
using namespace std;
int main(){
	int x,y;
	cin>>x>>y;
	cout<<x-(y/2-x)<<endl;
	cout<<y/2-x;
	return 0;
}

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