실행시간 제한: 2 Sec  메모리사용 제한: 128 MB
제출: 47  통과: 33
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#### 문제 설명

You are attempting to climb up the roof to fix some leaks, and have to go buy a ladder. The ladder needs to reach to the top of the wall, which is h centimeters high, and in order to be steady enough for you to climb it, the ladder can be at an angle of at most v degrees from the ground. How long does the ladder have to be?

#### 입력 설명

The input consists of a single line containing two integers h and v, with meanings as described above. You may assume that 1 ≤ h ≤ 10000 and that 1 ≤ v ≤ 89.

#### 출력 설명

Write a single line containing the minimum possible length of the ladder in centimeters, rounded up to the nearest integer.

#### 입력 예시 Copy

500 70


#### 출력 예시 Copy

533


## Sample Input 2

1000 10


## Sample Output 2

5759