Problem Statement

Takahashi is making a computer baseball game.
He will write a program that shows a batter's batting average with a specified number of digits.

There are integers ~A~ and ~B~ , which satisfy ~1 \leq A \leq 10~ and ~0 \leq B \leq A~ .
Let ~S~ be the string obtained as follows.

• Round off ~\dfrac{B}{A}~ to three decimal digits, then write the integer part ( ~1~ digit), . (the decimal point), and the decimal part ( ~3~ digits) in this order, with trailing zeros.

For example, if ~A=7~ and ~B=4~ , then ~\dfrac{B}{A} = \dfrac{4}{7} = 0.571428\dots~ rounded off to three decimal digits is ~0.571~ . Thus, ~S~ is 0.571 .

You are given ~A~ and ~B~ as the input and asked to print ~S~ .

Constraints

• ~1 \leq A \leq 10~
• ~0 \leq B \leq A~
• ~A~ and ~B~ are integers.

Input

The input is given from Standard Input in the following format:

~A~ ~B~

Output

Print ~S~ in the format specified in the Problem Statement. Note that answers in different formats will be considered wrong.

Sample Input 1

7 4

Sample Output 1

0.571

As explained in the Problem Statement, ~\dfrac{B}{A} = \dfrac{4}{7} = 0.571428\dots~ rounded off to three decimal digits is ~0.571~ . Thus, ~S~ is 0.571 .

Sample Input 2

7 3

Sample Output 2

0.429

~\dfrac{B}{A} = \dfrac{3}{7} = 0.428571\dots~ rounded off to three decimal digits is ~0.429~ . (Note that it got rounded up.)
Thus, ~S~ is 0.429 .

Sample Input 3

2 1

Sample Output 3

0.500

~\dfrac{B}{A} = \dfrac{1}{2} = 0.5~ rounded off to three decimal digits is again ~0.5~ .
Thus, ~S~ is 0.500 . Note that it must have three decimal places.

Sample Input 4

10 10

Sample Output 4

1.000

Sample Input 5

1 0

Sample Output 5

0.000