题目描述
It's the rainy season again, and the city experiences frequent showers throughout the day.
The weather report says that there is a P probability of rainfalls today. Raj has to step out for a meeting at the office, and would like to know the probability that it rains during the time he is on the way.
Input:
The first line of input contains the number of test cases, T. Each of the following T lines contain two numbers, P and time. P denotes the probability that it will rain today and time is the time (in minutes), it will take for Raj to reach his office.
Output:
Output should have T lines each containing answer to corresponding test case. Please round the answer to 4 decimal places.
Constraints:
1 ≤ T ≤ 100
0 ≤ P ≤ 0.5
10 ≤ time ≤ 720
time is a perfect divisor of 1440.
SAMPLE INPUT
2
0 10
.5 720
SAMPLE OUTPUT
0.0000
0.2929
输入格式
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输出格式
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