y, m, d = io.read("*n", "*n", "*n")
if(y < 1989) then
    io.write("No")
elseif(y == 1989) then
    if(m == 1) then
        if(d < 8) then io.write("No") else io.write("Yes") end
    else
        io.write("Yes")
    end
elseif(y < 2019) then
    io.write("Yes")
elseif(y == 2019) then
    if(m <= 4) then io.write("Yes") else io.write("No") end
else
    io.write("No")
end