1 extern char letters[26+1];
2 char letter;
3 int letter_number;
4 char letters[] = "AbCdefghiJklmNopQrStuVwXyZ";
5 
6 static void
pad_home1()7 pad_home1 ()
8 {
9   letter = letters[letter_number =
10 		   letters[letter_number + 1] ? letter_number +
11 		   1 : 0];
12 }
13 
14