what's the answer for (-4+3+1)??? last time I checked, the answer was zero!!!!
-4 + 3 +1=0 right. I don't remember you saying the absolute value in the instructions.
Return the first and last character of a string
How many jokers?
Vectors counting by 2
Sum of series I
Reverse a matrix
Concatenate two strings
Find the area of the four walls
Convert a number to its Roman representation
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