public class PuzzleTester {
    public static void main(String[] args){
        Puzzle p1 = new Puzzle("3A6", "36B", "71C");
        Puzzle p2 = new Puzzle("234", "567", "801");
        Puzzle p3 = new Puzzle("321", "654", "300");
        
        
        System.out.println(p1.firstLetter());
        System.out.println("Expected: A\n");
        
        System.out.println(p1.contains(3));
        System.out.println("Expected: true\n");
        
        System.out.println(p1.contains(4));
        System.out.println("Expected: false\n");
        
        System.out.println(p2.isSolved());
        System.out.println("Expected: true\n");
        
        System.out.println(p3.isSolved());
        System.out.println("Expected: false\n");
               
    }
}