I dont think that this i hard, but I dont understand!

[Ofnuts]

No I haven't! This is our first "task" :( By commands I mean: How do I write a loop and what does a loop mean? I think that you use + when you add, * when you multiply and / when you divide!

A loop is  as sequence of instructions which is executed several times. It either executed a fixed number of times:

for i in range(5):
   print i

Or executed while some condition is true

i=0
while i<5:
   print i
   i+=1

I'm surprised you are told to write this kind of code without being shown the basics...

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