#include <iostream> using namespace std; int main() { int a; while (cin >> a ) { // 注意 while 处理多个 case // cout << a + b << endl; if(a%2!=0){ cout<<"0 0"<<endl; }else if(a%4==0){ cout<<a/4<<' '<<a/2<<endl; }else{ cout<<a/4+1<<' '<<a/2<<endl; } } } // 64 位输出请用 printf("%lld")