#include<stdio.h>
int main()
{
    int x,y,z;
    scanf("%d%d%d",&x,&y,&z);
  
    if(16<=x&&x<=19&&50<=y&&y<=80&&165<=z&&z<=185)
        printf("Y");
    else
        printf("N");
        return 0;
}

/**************************************************************
	Problem: 1661
	User: admin
	Language: C
	Result: Accepted
	Time:27 ms
	Memory:1144 kb
****************************************************************/