Reverse a no in c++

#include"iostream.h"
#include<conio.h>
class rev
{
int a;
public:
void akhi()
{
cout<<"enter any no\n";
cin>>a;
}
void lesh()
{
int rev=0,rem;
while(a>0)
{
rem=a%10;
a=a/10;
rev=(rev*10)+rem;
}
Cout<<"\n  reverse is "<<rev;
}
};

void main()
{
clrscr();
rev k;
k.akhi();
k.lesh();
getch();
}