Takahashi has a deposit of 100 yen (the currency of Japan) in AtCoder Bank.  The bank pays an annual interest rate of 1 % compounded annually. (A fraction of less than one yen is discarded.)  Assuming that nothing other than the interest affects Takahashi's balance, in how many years does the balance reach X yen or above for the first time?
a = 100
x = int(input())
count = 0

while a <= x:
  a = a + int(a * 0.01)
  count += 1

print(count)
a = 100
x = int(input())
count = 0

while a < x:
  a = a + a // 100
  count += 1

print(count)