while loop help

[smbx33]

list_ = [6,8,4,5,2]
I = 0
J = 999
while I < 5:
   J = 0
   while J < 4:
       if list_[J]> list_[J+1]:    # This if statement will check values in list and then...
           list_[J],list_[J+1] = list_[J+1],list_[J]    # swap the values if the item after it has a lesser value
           J += 1
           I += 1
       else:
            J += 1
            I += 1
print(list_)

Without knowing exactly what the output should be I won't know if its correct, but judging by the steps you are stuck at, it looks like it wants you to swap values in a list.