SPOILERS!
by 'b' you mean the one with the same picture as 78? if so...
That is a red herring! You have gotten the answer for level 78 WRONG. I know, you have to follow the texts of the cheesecake thing and replace the letters with the instruction I.E: If he is called ray than therefore, Cheesecake
Crayesecake. Just try again if that is the case.
If it is the one with the shapes, you are on the right track! but unfortunately, I do not know the answer because I am trying to figure it out now lol XD but i will try to solve it soon! :D
Good Luck on Your Zahada,
Chase Sullivan
eye
pentagram
044
eye
wires
queue
ninety
phase2
bangkok
yesterday
heart
The answer is yesterday.
yesterday
saycheese
googol
yesterday
whywoolyowl