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E. Valera and Number
time limit per test
2 seconds
memory limit per test
256 megabytes
input
standard input
output
standard output

Valera is a coder. Recently he wrote a funny program. The pseudo code for this program is given below:


//input: integers x, k, p
a = x;
for(step = 1; step <= k; step = step + 1){
rnd = [random integer from 1 to 100];
if(rnd <= p)
a = a * 2;
else
a = a + 1;
}

s = 0;

while(remainder after dividing a by 2 equals 0){
a = a / 2;
s = s + 1;
}

Now Valera wonders: given the values x, k and p, what is the expected value of the resulting number s?

Input

The first line of the input contains three integers x, k, p (1 ≤ x ≤ 109; 1 ≤ k ≤ 200; 0 ≤ p ≤ 100).

Output

Print the required expected value. Your answer will be considered correct if the absolute or relative error doesn't exceed 10 - 6.

Examples
Input
1 1 50
Output
1.0000000000000
Input
5 3 0
Output
3.0000000000000
Input
5 3 25
Output
1.9218750000000
Note

If the concept of expected value is new to you, you can read about it by the link:

http://en.wikipedia.org/wiki/Expected_value