public class AgeOfJava {
	public static void main(String[] args) {
		int birthYear = 1995;
		int currentYear = 2013;
		int birthDay = 143;
		int currentDay = 253;
		int year = currentYear - birthYear;
		double age = year + (currentDay - birthDay) / (double) daysPerYear;
		System.out.printf("%.2f\n", age);
	}
}