118. Colors
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output
This problem is worth 5 points.

In computer graphics, colors are often given as three integers $$$R$$$, $$$G$$$, and $$$B$$$, each ranging from 0 to 255, inclusive.

When displaying a bright red color, $$$R$$$ = 255, $$$G$$$ = 0, and $$$B$$$ = 0.

When displaying a bright green color, $$$R$$$ = 0, $$$G$$$ = 255, and $$$B$$$ = 0.

When displaying a bright blue color, $$$R$$$ = 0, $$$G$$$ = 0, and $$$B$$$ = 255.

When displaying a bright yellow color, $$$R$$$ = 255, $$$G$$$ = 255, and $$$B$$$ = 0.

Given this information, figure out which color corresponds to a RGB-format color given in the input.

Input

The only line of input contains three space-separated integers $$$R$$$, $$$G$$$, and $$$B$$$: the values of $$$R$$$, $$$G$$$, and $$$B$$$ as described above.

Output

Output a single string: the color that the input values would display when drawn on a computer screen.

If the color is red, output "RED" (no quotes)

If the color is green, output "GREEN" (no quotes)

If the color is blue, output "BLUE" (no quotes)

If the color is yellow, output "YELLOW" (no quotes)

Examples
Input
255 0 0
Output
RED
Input
255 255 0
Output
YELLOW