#include<bits/stdc++.h> using namespace std; int main() { int x,y,a,b; cin>>x>>y; a=(x*4-y)/(4-2); b=x-a; cout<<a<<" "<<b; return 0; }

#include<bits/stdc++.h> using namespace std; int main() { int ji,tu,tou,jiao,x,y; cin>>tou>>jiao; x=tou*2;//假设全是鸡 y=jiao-x;//少了几条腿 tu=y/2; ji=tou-tu; cout<<ji<<' '<<tu; return 0; }