Compound Doubling
A balance of B grows by R% COMPOUND interest per year (rounded down to an integer each year). Print how many whole years until the balance is at least 2B.
Input: one line with two integers B and R.
Output: the number of years.
Constraints:
- 100 ≤ B ≤ 109
- 1 ≤ R ≤ 100
Sample Tests
Input 1
100 10
Output 1
8
Input 2
1000000000 1
Output 2
70
Discussion (opens after you solve — no spoilers before)
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