Score : $100$ points

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.

7 4

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.

7 3

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.

2 1

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.

10 10

1.000

1 0

0.000