AOJ 276 - 阶乘数列

阶乘数列

Time Limit: 1000ms

Memory Limit: 32768KB

64-bit integer IO format: %lld Java class name: Main

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Description

求Sn=1!+2!+3!+4!+5!+…+n!之值，其中n是一个整数。（1≤n≤10）

Input

n

Output

Sn

Sample Input

Sample Output

Author

Admin

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