#include <iostream>
using namespace std;

int main() {
  // declaring class size array
  int classSizes[4];
  // declaring class room # array and initializing
  int classRoomNum[4] = {409, 908, 1001, 913};
  // a variable to determine what class to give info on
  int whichClass = 2;

  // initializing class sizes individually
  classSizes[0] = 14;
  classSizes[1] = 8;
  classSizes[2] = 21;
  classSizes[3] = 17;

  // print out sizes
  cout << "Class Sizes:\n";
  cout << "class 0:" << classSizes[0] << "\n";
  cout << "class 1:" << classSizes[1] << "\n";
  cout << "class 2:" << classSizes[2] << "\n";
  cout << "class 3:" << classSizes[3] << "\n";
  
  cout << "\n";

  cout << "Class Room Numbers:\n";
  cout << "class 0:" << classRoomNum[0] << "\n";
  cout << "class 1:" << classRoomNum[1] << "\n";
  cout << "class 2:" << classRoomNum[2] << "\n";
  cout << "class 3:" << classRoomNum[3] << "\n";

  cout << "\n";

  cout << "Class " << whichClass << " has ";
  cout << classSizes[whichClass] << " students and is held in ";
  cout << "room " << classRoomNum[whichClass] << ".\n\n";


}