T331041

95pts,错第二个点，可能被卡了

#include<bits/stdc++.h>
using namespace std;
#define int unsigned long long
int a,b;
signed main(){
	cin>>a>>b;
	if(a%2!=0||b%2!=0||(a==0&&b!=0)||(a!=0&&b==0)){
		cout<<"Impossible!";
		return 0;
	}
	int suma=a/2*3;
	int sumb=b-suma;
	int sumc=(a-sumb*2)/4;
	if(sumc!=(a-(b-a/2*3)*2)/4){
		cout<<"Impossible!";
		return 0;
	}
	cout<<sumb<<" "<<sumc;
	return 0;
}