inp = input()
split_first = inp.split(' ')
Y = int(split_first[0])
M = int(split_first[0])
D = int(split_first[0])

if (Y < 1989) or (2019 < Y):
    print('No')
elif(Y==1989) and (D<8):
    print('No')
elif(Y==2019) and (4<M):
    print('No')
else:
    print('Yes')