y,m,d=map(int,input().split())
ans="No"

if y >= 1990 and y <= 2018 :
    ans="yes"
elif y==1989 and m > 2:
    ans="yes"
elif y==1989 and m==1 and d>8:
    ans="yes"
elif y==2019 and m<4:
    ans="yes"
    
    
print(ans)