src2020/1659_n!/test/out.txt

## z:\Chao\src\1659_n!\test\in.txt 
2020/04/24 <20><><EFBFBD><EFBFBD> 13:46:26.28 
1
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Process exited after 140 ms with return value 0

## z:\Chao\src\1659_n!\test\in2.txt 
2020/04/24 <20><><EFBFBD><EFBFBD> 13:46:26.28 
1307674368000
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Process exited after 90 ms with return value 0

## z:\Chao\src\1659_n!\test\in3.txt 
2020/04/24 <20><><EFBFBD><EFBFBD> 13:46:26.28 
24
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Process exited after 180 ms with return value 0