Bob is trying to live-stream a video in his ICS class! He's learned that colours are represented by a triple $(R,G,B)$, where $R$ is the intensity of red, $G$ is the intensity of green, and $B$ is the intensity of blue. He knows that humans don't perceive the higher end of the spectrum well, so the data can be compressed into $(\lfloor \sqrt{R}\rfloor ,\lfloor \sqrt{G}\rfloor ,\lfloor \sqrt{B}\rfloor )$, where $\lfloor x\rfloor$ is the largest integer less than or equal to $x$, to save space while transmitting.

However, this means that sometimes two different colours will, after applying the compression, become the same colour! For example, the colours $(2,2,2)$ and $(3,3,3)$ will both become $(1,1,1)$ after compression.

Thus Bob asks you: will the given two colours become the same colour after compression?

Input Specification

The first line of input will contain 3 integers, $R_1,G_1,B_1$, the RGB values of the first colour.
The second line of input will contain 3 integers, $R_2,G_2,B_2$, the RGB values of the second colour.

All integers in the input are in the range $[0,{10}^9]$.

Output Specification

Output Colourful if the two colours become different colours following the compression algorithm, or Dull otherwise.

Sample Input 1

1 100 20
1 4 21

Sample Output 1

Colourful

Sample Input 2

1 1 1
1 1 1

Sample Output 2

Dull