Problem2645--蓝桥杯省赛真题训练 - 合数求和

2645: 蓝桥杯省赛真题训练 - 合数求和

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Time Limit : 1.000 sec  Memory Limit : 128 MB

SubmitSolved: 9Submit Num: 13Statistics

Description

Sample Input Copy 

7

Sample Output Copy 

10

Source/Category

蓝桥杯 
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