PROGRAMMING:Print hourglass
This problem requires you to write a program to print the given symbol into the shape of the hourglass. For example, given 17 "*", it is required to print in the following format
```
***
*
***
```
The so-called "hourglass shape" means that each line outputs an odd number of symbols; Align the center of each line; The difference between two adjacent lines is 2; The number of symbols first decreases from large to small to 1, and then increases from small to large; The number of first and last symbols is equal.
Given any n symbols, an hourglass may not be formed exactly. The printing hourglass is required to use as many symbols as possible.
###Input format:
Input gives a positive integer n ($$$Le $$1000) and a symbol on a line, separated by a space.
###Output format:
First print out the largest hourglass shape composed of given symbols, and finally output the number of unused symbols in a line.
###Input example:
```in
19 *
```
###Output example:
```out
***
*
***
two
```
answer：If there is no answer, please comment
```
***
*
***
```
The so-called "hourglass shape" means that each line outputs an odd number of symbols; Align the center of each line; The difference between two adjacent lines is 2; The number of symbols first decreases from large to small to 1, and then increases from small to large; The number of first and last symbols is equal.
Given any n symbols, an hourglass may not be formed exactly. The printing hourglass is required to use as many symbols as possible.
###Input format:
Input gives a positive integer n ($$$Le $$1000) and a symbol on a line, separated by a space.
###Output format:
First print out the largest hourglass shape composed of given symbols, and finally output the number of unused symbols in a line.
###Input example:
```in
19 *
```
###Output example:
```out
***
*
***
two
```
answer：If there is no answer, please comment