INPUT FILE: test5.in
OUTPUT FILE: test5.out
The factorial of a whole number N (written "N!") is defined as follows:
N! = 1 x 2 x 3 x ... x (N-1) x N
For example, 10! = 1 x 2 x 3 x 4 x 5 x 6 x 7 x 8 x 9 x 10 = 3628800.
The "factorial length" of a number N is defined as the
number of digits in N!.
Thus the factorial length of 10 is 7.
INPUT
On each of five lines is a positive integer N in the range 1..500.
OUTPUT
For each of the five inputs, output that number's factorial length in the format
shown below.
Sample Input File
1 2 5 10 52
Output for Sample Input
The length of 1! is 1 The length of 2! is 1 The length of 5! is 3 The length of 10! is 7 The length of 52! is 68