Confused on what to do to write this program

[Chaofun]

I'm completely unsure on how to do this program so if possible can someone tell me what I'm suppose to do?

http://www.cs.csi.cuny.edu/~zelikovi/csc126/psychic.htm

Thanks if you guys can help me out >.<

[Athar]

The instructions already tell you what to do.

[Chaofun]

Yeah but I'm not sure what these functions do and which goes where though.

[Athar]

Yeah but I'm not sure what these functions do

The instructions tell you that as well.

which goes where though.

Once you know what they do, that is solved by thinking.