#include <iostream>
#include <cmath>
using namespace std;
//Jay Greene//
int main() {
int credHour ;
int studyHour;
int shouldStudy;
int actStudy;
// User inputs amount of hours to be calculated//
cin >> credHour;
// The formula to calculate how many hours one should be studying for every credit hour inputed by the user"
studyHour = ( credHour * 3 );
// Prints out how many hours one shoud study //
cout << "Total Hours is : " << studyHour << endl;
// Prompts the user to enter the amount of hours they should study //
cin >> shouldStudy;
// Calculation of how many hours the user is actually spending //
actStudy = (studyHour - shouldStudy);
//Prints how many hours spent studying //
cout << "Hours actually spent studying is : " << actStudy << endl;
//Dimensions for the stadium used for the conversion //
int stadium1 = 105 ;
int stadium2 = 68 ;
// The calculations for the stadiums to be converted from meters to feet//
stadium1 = 105 * 3.281;
stadium2 = 68 * 3.281;
//Prints the length and width of the stadium using the values given//
cout << "The length and width of the stadium is : " << stadium1 << " ft" << endl;
cout << "And : " << stadium2 << " ft "<< endl;
// Ball size circumfrence calculation//
double ballSize = 2* M_PI*(11);
// prints the ball size//
cout << " The circumfrence of the ball is " << ballSize << "cm^3 " << endl;
// Prompts the user to enter the amount of stadium players //
int stadiumP ;
double totalMin ;
cin >> stadiumP;
// Calculations of the amount of time players can play //
totalMin = 43.0 / stadiumP;
cout << "Players will play for " <<totalMin <<" minutes"<< endl;
return 0;
}