Write a program that take 5 digit number and find the sum of first and last digit

#include<iostream.h>

#include<conio.h>

void main()

{

clrscr();

int n,a,b,sum;

cout<<"Enter 5-digit number:"<<endl;

cin>>n;

a=n/10000;

b=n%10;

cout<<"The sum of first and last digit is "<<a+b;

getch();

}