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?
#!/usr/bin/env python
# -*- coding: utf-8 -*-
x = int(input())
base = 100
year = 0
while x <= base:
    year +=  1
    base = int(base * 1.01)
print(year)

x = int(input())
base = 100
year = 0
while True:
    year = year + 1
    base = int(base * 1.01)
    if x <= base:
        print(year)
        break