inputNumber = int(input("Please input a integer(1-3999):"))

#romanNumberTable = {"M":1000,"CM":900,"D":500,"CD":400,"C":100,"XC":90,"L":50,"XL":40,"X":10,"IX":9,"V":5,"IV":4,"I":1}

romanNumberTable={15:"f",14:"e",13:"d",12:"c",11:"b",10:"a",9:"9",8:"8",7:"7",6:"6",5:"5",4:"4",3:"3",2:"2",1:"1",0:"0"}

romanNumber = ""

while inputNumber >0:

   

    #times = int(inputNumber/romanNumberTable[roman])

    times=int(inputNumber)

   

  

   #romanNumber = romanNumber + roman*times

    romanNumber =  romanNumberTable[times]+romanNumber

   

   

    #inputNumber = inputNumber - times*romanNumberTable[roman]

    inputNumber = int(inputNumber/16)

    

print("romanNumber:",romanNumber)