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Hello again... yeah, till now i'm still learning python, actually i got an interesting class, you're also can join in it, it is here ... alright, in that class i got some exercises and i want to share it with you... but maybe if you wanna learn you'd better try it first before you read my code.. :D i think we are all know that algorithm may different one with other and if you already have your code maybe you can compare it with mine ^_^ ... as you can see all of the answer is "OK" , so what about you? and here is the file... it would be nice to talk about it... see you ^_^