#include <iostream>

using namespace std;
float pole (float bok)
{
    return bok*bok;
}
float suma(float a,float b)
{
return a+b;
}
float polp(float x,float y)
{
    return x*y;
}
float kula (float r)
{
    return (4/3)*3.14*r*r*r);;
}
int main()
{

    float bok;
    cout << "Pole kwadratu!" << endl;
    cout <<"Podaj bok";
    cin>>bok;
    cout <<pole(bok)<<endl;
    cout <<suma(2,3)<<endl;
    cout <<"Pole prostokata"<<polp(3,5)<<endl;
    cout <<"Kula"<<kula(2);
    return 0;

}
;