Identify and correct the error(s) in each of the following (you may simply need to add code):

Assume that z has been initialized to 50. The values from 0 to 50 should be totaled.

While (z>=0)

sum = sum + z

Assume that y and total are declared as Integers

total = 0

Do Until y = -1

Print y

y = InputBox(Enter a value, value input)

total = total + y

Loop