-my @days = (31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+use vars qw(@days @ldays @month);
+@days = (31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+@ldays = (31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31);
+@month = qw(Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec);