README
Always perfect
While surfing in web I found interesting math problem called “Always perfect”.
That means if you add 1 to the product of four consecutive numbers the answer
is ALWAYS a perfect square. For example, we have: 1,2,3,4 and the product will
be 1X2X3X4=24. If we add 1 to the product that would become 25, since the result
number is a perfect square the square root of 25 would be 5.
So now let’s write a function which takes numbers separated by commas in string format and returns the number which is a perfect square and the square root of that number.
If string contains other characters than number or it has more or less than 4
numbers separated by comma function returns “incorrect input”.
If string contains 4 numbers but not consecutive it returns “not consecutive”.