#include <iostream>
using namespace std;
 
 
class cat
{
    private:
        int height;
    public:
        cat (int inputHeight);
};
 
cat::cat (int inputHeight)
{
    height = inputHeight;
}
 
class twoCats
{
    private:
        cat firstCat;
        cat secondCat;
    public:
        twoCats (cat theFirstCat);
        void addSecondCat (cat theSecondCat);
};
 
twoCats::twoCats (cat theFirstCat) : firstCat( theFirstCat), secondCat( theFirstCat)
{
}
 
void twoCats::addSecondCat (cat theSecondCat)
{
    secondCat = theSecondCat;
}
 
int main() {return 0;}

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