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#1
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1,1,2,1,2,3,1,2,3,4,1,2,3,4,5,....
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#2
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1. áºè§¡ÅØèÁÅӴѺ´éÒ¹º¹à»ç¹¡ÅØèÁæ´Ñ§¹Õé 1, 1,2, 1,2,3, 1,2,3,4, 1,2,3,4,5, ... ¨Ò¡ÃٻẺ´éÒ¹º¹ ¨ÐàËç¹ÇèÒ ¨Ó¹Ç¹ÊØ´·éÒ¢ͧáµèÅкÃ÷Ѵ ¨Ðà»ç¹¨Ó¹Ç¹·Õèà·èÒ㴢ͧÅӴѺ 2. 1+2+...+100=5050<1+2+...+101
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