`\color{blue}{\text{PhOnG}}`

#include <bits/stdc++.h>
 using namespace std;
 int n,m;
 int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    cin>>n>>m;
    if ((m-2*n)%2==0)
        cout<<n-(m-2*n)/2<<" "<<(m-2*n)/2;
    else cout<<"-1";
}

#include <bits/stdc++.h>
using namespace std;
#define int long long
signed main(){
	ios_base::sync_with_stdio(0);
	int n,m;
	cin>>n>>m;
	for(int i=0;i<=n;i++){
		int j=n-i;
		if(i*2+j*4==m){
			cout<<i<<" "<<j;
			return 0;
		}
	}
}