TreeEmpty on mySTree is 1
mySTree is size 8after inserting 
                            16

             10                            20

       5            15              17

                 12

                   14

mySTree is size 7after deleting 15 
                            16

             10                            20

       5            12              17

                       14

mySTree is size 11after updating 
                            16

             10                            20

       5            12              17

          5      10    14        16

                         15



Find(15) returns 1

Find(47) returns 0

mySTree is size 0after clear