Write a program that take a number from user consisting of 3 digit and print the sum of all digit

#include<iostream.h>

#include<conio.h>

void main()

{

clrscr();

int n,a,b,c,d;

cout<<"Enter 4-digit number:"<<endl;

cin>>n;

b=n/1000;

n=n%1000;

c=n/100;

n=n%100;

d=n/10;

n=n%10;

cout<<"The inverse order is ";

cout<<n<<d<<c<<b;

getch();

}