functions

 #include <stdio.h>

void goodmorning();

void goodafternoon();

void goodevening();

int main(){

goodmorning();

 return 0;

}

void goodmorning()

{

    printf("Good Morning!\n");

    goodafternoon();

}

void goodafternoon()

{

    printf("Good Afternoon!\n");

     goodevening();

}

void goodevening()

{

    printf("Good Evening!\n");

   

}