题解 | #鸡兔同笼#

#include<iostream>
#include<cstdio>


using namespace std;


int main()
{
    int a;
    while(scanf("%d",&a) !=EOF){
        int minimum=0;
        int maxmum=0;
        if (a%2==0){
            minimum=a/4+(a%4)/2;
            maxmum=a/2;
        }
        printf("%d %d\n",minimum,maxmum);
    }
    return 0;

}