first = input();
firstdata= first.split(" ");

year_data = int(firstdata[0]);
month_data = int(firstdata[1]);
day_data = int(firstdata[2]);
result = "";

if year_data >= 1989 and year_data < 2019:
	if year_data == 1989 and month_data ==1 and day_data <= 7:
		result= "No";
	else:
		result = "Yes";
elif year_data == 2019:
	if month_data < 5:
		result = "Yes";
	else:
		result = "No";
else:
	result = "No";

print(result);