백준(브론즈1) - 1110. 더하기 사이클(브론즈1)
userInput = int(input())
originalNum = userInput
resultNum = 0
addNum = 0
cycleLength = 0
while True:
addNum = userInput//10 + userInput%10
resultNum = (userInput%10)*10 + addNum%10
cycleLength += 1
userInput = resultNum
if resultNum == originalNum:
break
print(cycleLength)