#!/bin/sh
printf "Enter a number\n"
read c
x=$c
s=0
while [ $x -gt 0 ]
do
	s=(( s + x % 10 * x % 10 * x % 10 ))
	x=`expr $x / 10`
done
if [ $s -eq $c ]
	then
		echo "It is an armstrong number"
	else
		echo "It is not an armstrong number"
fi