Problem2083--友谊庆典

2083: 友谊庆典

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 123  Solved: 19
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Description

Input

Output

Sample Input Copy 

输入 #1
3
1 2 3
输入 #2
4
123456 234567 345678 456789

Sample Output Copy 

输出 #1
11
输出 #2
162250917

HINT

Source/Category

 
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