#!/usr/bin/ruby

func leap (year) {
    year % 100 == 0
                ? (year % 400 == 0)
                : (year %   4 == 0);
};

range(2000, 2013).each { |i|
    (leap(i)
        ? "%d was a leap year\n"
        : "%d wasn't a leap year\n"
    ).printf(i);
}