#include <iostream.h>
#include <iomanip.h>
#include <math.h>
int main()
{
    int r=4;
    float u, f, pi = 3.14259;
    
    u = 2 * pi * r;
    f = pi * r * r;
    cout << "u = " << u << endl;
    cout << "f = " << f << endl;
    
cout << "\nProgrammende...";
cin.get (); cin.get();
return(0);    
    }

/*

*/