5938: K9-2-3 n！的精确值
Memory Limit：128 MB
Time Limit：1.000 S
Judge Style：Text Compare
Creator：
Submit：0
Solved：0
Description
输入n，输出n！的精确值，n!=1x2x3x......xn,1<n<1000.
Sample Input Copy
100Sample Output Copy
93326215443944152681699238856266700490715968264381621468592963895217599993229915608941463976156518286253697920827223758251185210916864000000000000000000000000