s = float(input())
sum = 0
step = 0
meter = 2.0
while sum < s:
sum += meter
meter = 0.98 * meter
step += 1
print(step)
s = float(input())
sum = 0
step = 0
meter = 2.0
while sum < s:
sum += meter
meter = 0.98 * meter
step += 1
print(step)
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