import java.util.ArrayList; 

class Collections {
  public static <T extends Comparable<T>> void sort(ArrayList<T> students) {
    boolean sorted = false; 
    while(! sorted) {
      sorted = true;
      for (int i = 0; i < students.size() - 1; i = i + 1) {
        T a = students.get(i); 
        T b = students.get(i+1); 
        if (a.compareTo(b) > 0) {
           students.set(i, b); 
           students.set(i+1, a);
           sorted = false;
           System.out.println("Swapping " + a + " with " + b);
        }
      }
    }
  }
}