inserted dog
inserted cat
inserted fox
pre-order: dog cat fox 
count is 3
depth of cat is 1
height is 1
inserted mule
inserted giraffe
inserted kangaroo
inserted elephant
inserted catfish
inserted apple
inserted bear
inserted banana
inserted acorn
count is 12
height is 4
depth of bear is 3
pre-order: dog cat apple acorn bear banana catfish fox elephant mule giraffe kangaroo 
in-order: acorn apple banana bear cat catfish dog elephant fox giraffe kangaroo mule 
post-order: acorn banana bear apple catfish cat elephant kangaroo giraffe mule fox dog 
deleted catfish
deleted elephant
in-order: acorn apple banana bear cat dog fox giraffe kangaroo mule 
inserted elephant
inserted catfish
in-order: acorn apple banana bear cat catfish dog elephant fox giraffe kangaroo mule 
deleted cat
count is 11
depth of bear is 1
height is 4
pre-order: dog bear apple acorn banana catfish fox elephant mule giraffe kangaroo 
in-order: acorn apple banana bear catfish dog elephant fox giraffe kangaroo mule 
post-order: acorn banana apple catfish bear elephant kangaroo giraffe mule fox dog 
deleted giraffe
in-order: acorn apple banana bear catfish dog elephant fox kangaroo mule 
deleted mule
in-order: acorn apple banana bear catfish dog elephant fox kangaroo 
tree contains apple
tree contains catfish
tree contains bear
tree contains dog
tree contains kangaroo
tree contains banana
no insert: apple
no insert: dog
no insert: kangaroo
tree does not contain cat
no depth: giraffe
no delete: mule
cleared tree
count is 0
height is -1
pre-order: 
in-order: 
post-order: 
tree does not contain dog
no depth: dog
no delete: dog
bad command: weight
incomplete command: contains
incomplete command: depth
incomplete command: delete
incomplete command: insert
incomplete command: print