if you have < STDIO.H> remove the leading space: <STDIO.H>
If you are in a case-sensitive environment, it should be lowercase: <stdio.h>
If you are writing in C++ it should be <cstdio>
BTW, which compiler are you using?
Sir bazzy, i dont know what happen in my turboc, because im beginner.. Im a first year college.. I like to study the other components of TC..and to improve myself in programming..