Răspuns :
• XXI = 21
• CCCXXXIII = 333
• XLI = 41
• DLV = 555
• MDLIV = 1554
• MMXVIII = 2018
• MDCCCLXXXUX = 1889
• CCCXXXIII = 333
• XLI = 41
• DLV = 555
• MDLIV = 1554
• MMXVIII = 2018
• MDCCCLXXXUX = 1889