#include <iostream>
#include <iomanip>

int main(void){
  int y,m,d;
  std::cin >> y >> m >>d;
  if ((y*10000+m*100+d >=19890108)&&(y*10000+m*100+d <=20190430)){
    std::cout << "Yes" << std::endl;
  }
  else{
    std::cout << "No" << std::endl;
  }
  
}