Knowing that 123-45-67+89=100, write a function that gives this result for any order of the digits in the input. Otherwise, the function should give 'NaN'.
Make a Palindrome Number
random picture with random colours
Sum of series II
Sum of series III
Sum of a geometric series
Ratio between sum of primer numbers and non-prime numbers
Check if is a square
Get the mean digit
Alternating 1´s and 0´s in a matrix
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