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That confused me. The output is usually what a program returns. ( instead of input - you type in usually )
Anyways there are more mistakes. The word 'know' is missing after 'how' for example.
What about the other error that was mentioned here ?

Used Markdown and Output , not output & input not sure if i'm so dead wrong here! As for spelling i tried to correct them, made some silly ones but they are fixed now! i hope it's good now!

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