#!/bin/bash

read -p "Enter size of the clock: " N

odd=$(("$N"%2))

if [[ "$odd" == 0 || "$N" <=1 ]]; then
        echo "Incorrect value. It should be odd and more than a 1"
        exit
fi

for (( i=0; i<=$(("$N"-2)); i++ )); do
        for (( j=0; j<="$N"; j++ )); do
                if [[ $(("$N"-"$i")) >=$(("$N"-"$j")) ]]; then
                        echo -n "* "
                else
                        echo -n " "
                fi
        done
        echo ""
done

for (( i=1; i<="$N"; i++ )); do
        for (( j=1; j<="$N"; j++ )); do
                if [[ $(("$N"-"$i")) < "$j" ]]; then
                        echo -n " *"
                elif [[ "$i" == 1 && "$j" == 5 ]]; then
                        echo -n " "
                else
                        echo -n " "
                fi
        done
        echo ""
done