1980 is a leap year!
1981 is not a leap year!
1982 is not a leap year!
1983 is not a leap year!
1984 is a leap year!
1985 is not a leap year!
1986 is not a leap year!
1987 is not a leap year!
1988 is a leap year!
1989 is not a leap year!
1990 is not a leap year!
1991 is not a leap year!
1992 is a leap year!
1993 is not a leap year!
1994 is not a leap year!
1995 is not a leap year!
1996 is a leap year!
1997 is not a leap year!
1998 is not a leap year!
1999 is not a leap year!
2000 is a leap year!
2001 is not a leap year!
2002 is not a leap year!
2003 is not a leap year!
2004 is a leap year!
2005 is not a leap year!
2006 is not a leap year!
2007 is not a leap year!
2008 is a leap year!
2009 is not a leap year!
2010 is not a leap year!
2011 is not a leap year!
2012 is a leap year!