import sequtils, strutils

let
  xs = stdin.readLine.split.map parseInt
  y = xs[0]
  m = xs[1]
  d = xs[2]
  b = if y == 1989:
        if m == 1:
          d >= 8
        else:
          true
      elif y == 2019:
        if m == 4:
          d == 30
        else:
          m < 4
      else:
        y > 1989 and y < 2019

if b:
  echo "Yes"
else:
  echo "No"