A program that prints the exact copy of the code

Its my teacher Mr.Joju John who told me about his
blog. I went through his blog and saw some beautiful
articles based on his hacking in ‘C’.I saw a program
which prints the exact replica of the code in the file.
Well i had heared the same problem during college days,
but then i wasn’t nearby the solution. Now it really
make me feel that the code is simple.
Here is the code:

char *p=”char *p=%c%s%c;main(){printf(p,34,p,34);}”;main(){printf(p,34,p,34);}

Have the fun.