#include<stdio.h>
#include<windows.h>
int main(void){
float o,h,l,c;
int e=0;
scanf("%f%f%f%f",&o,&h,&l,&c);
if(c<o)printf("BW-Solid");
if(c>o)printf("R-Hollow");
if(c==o)printf("R-Cross");
if(l<o&&l<c&&++e)printf(" with Lower Shadow");
if(h>o&&h>c)printf(" %s Upper Shadow",e?"and":"with");
system("pause");
return 0;
}