#include <stdio.h>

void main(void) {
	int year , month , day ;
	scanf("%d %d %d",&year,&month,&day);
	if(year > 2019 || year == 2019 && month > 4 ||  year < 1989 || year == 1989 && month == 1 && day < 8){
		printf("No");
	}else{
		printf("Yes");
	}
}