Sorry Mr tojan...
If i had used some bad words to you...
i thought your r still ignoring me..
any way sorry and hope you got it my logic...

I accept u criticism, and nothing wrong with your words.
I learn something from both of u.

thank you guys for your help..

#include<stdio.h>
#include<conio.h>
#include<math.h>
void main()
{
int x,y,z;
scanf("%d",&x);
while(x>0)
{
y=x/10;
z=x%10;
x=y;
printf("%d",z);
}
printf("%d",x);
getch();
}