Rhombus

A square grid of size $n \times n$ is given, where $n = 2k+1$ is odd. The center of the grid is the cell $(k + 1, k + 1)$. The distance between two cells $(x_1, y_1)$ and $(x_2, y_2)$ is $|x_1 - x_2| + |y_1 - y_2|$.

A rhombus with parameters $(a, b)$ is the set of cells whose distance from the center is between $a$ and $b$, inclusive.

Given $n$, $a$, and $b$, draw the rhombus.

The first line contains an integer $n$ ($1 \le n \le 201$, $n$ is odd). The second line contains an integer $a$. The third line contains an integer $b$ ($0 \le a \le b$, and if $n = 2k+1$, then $b \le k + 1$).

Print $n$ lines, each with $n$ characters. A cell that belongs to the rhombus is printed as *, and a cell that does not is printed as ..