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TASK #1 - Middle 3-digits
You are given an integer.
Write a script find out the middle 3-digits of the given integer, if
possible otherwise throw sensible error.
Example 1
Input: $n = 1234567
Output: 345
Example 2
Input: $n = -123
Output: 123
Example 3
Input: $n = 1
Output: too short
Example 4
Input: $n = 10
Output: even number of digits
MY NOTES: Pretty easy, although it's not clear how to always treat negative numbers.
Assume abs() them.
TASK #2 - Validate SEDOL
You are given 7-characters alphanumeric SEDOL.
Write a script to validate the given SEDOL. Print 1 if it is a valid SEDOL otherwise 0.
For more information about SEDOL, please checkout https://en.wikipedia.org/wiki/SEDOL
Example 1
Input: $SEDOL = '2936921'
Output: 1
Example 2
Input: $SEDOL = '1234567'
Output: 0
Example 3
Input: $SEDOL = 'B0YBKL9'
Output: 1
MY NOTES: Pretty easy
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