#include<iostream>
using namespace std;
int main()
{
    
    double twork,inra,nuwo,grra,inda,grda;
    cin>>twork>>inra>>nuwo>>grra;
    inda=twork/inra;
    grda=twork/nuwo*grra);
    cout<<inda<<endl;
    cout<<grda<<endl;
    return 0;
}