n = input()
m = n.split()
year = int(m[0])
month = int(m[1])
date = int(m[2])
if year > 1989  and year < 2019 :
    print('Yes')
elif year == 1989:
    if month > 1:
        print('Yes')
    elif month == 1 and date >= 8:
        print('Yes')
    else:
        print('No')
elif year == 2019:
    if month < 4:
        print('Yes')
    elif month == 4 and date <= 30:
        print('Yes')
    else:
        print('No')
else:
    print('No')