#include <stdio.h>

int main(void)
{
    int y,m,d;

    scanf("%d%d%d",&y,&m,&d);

    if(y>=1989 && y<=2019){
        switch (y){
            case 1989:
                if (m == 1){
                    if (d < 8){
                        printf("No\n");
                    } else {
                        printf("Yes\n");
                    }
                } else {
                    printf("Yes\n");
                }
                break;
            case 2019:
                if (m <= 4){
                    printf("Yes\n");
                } else {
                    printf("No\n");
                }
                break;
            default :
                printf("Yes\n");
                break;
        }
    } else {
        printf("No\n");
    }

    return 0;
}