s='He was so tired'
ans = true
Remove all the consonants
Return the 3n+1 sequence for n
Remove any row in which a NaN appears
Make a Palindrome Number
Area of a circle
Find the sum of the negative elements under the main diagonal.
Find the Sum of the Series:
Return ! if array element starts with a certain letter. Otherwise return ?
Find Adjacency Matrix
Solve the following system of equations.
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