input_params = list(map(int,input().split()))
year = input_params[0]
month = input_params[1]
day = input_params[2]

res = 'No'

if 1989 < year and year < 2019:
    res = 'Yes'
elif year == 1989:
    if month > 1:
        res = 'Yes'
    elif month == 1 and day >= 8:
        res = 'Yes'
elif year == 2019 and month < 5:
    res = 'Yes'
    
print(res)