From Roman Numerals
Schreibe eine Funktion, die Römische Zahlen [1] in Dezimalzahlen übersetzt.
Russian pawn multiplication
Write a function that multiplies two integers using the "Russian pawn multiplication" algorithm.
Mail Followup
Implement a function to translate mail followup email addresses into dates and times.
Christmas tree
Write a function that returns a christmas tree with ASCII type "drawn" as text.