Cubo and Dumbo decide to play a game. Cubo thinks of a word w1 and Dumbo thinks of word w2. They both write their words down and share it.

If w1 and w2 share a common substring, Dumbo wins the game. Else Cubo wins the game.

Note that a substring may be as small as one character.

Given w1 and w2, print "Dumbo" if Dumbo wins the game, else print "Cubo".

Constraints

• 0 ≤ w1.length, w2.length ≤ 10⁴

• w1 and w2 consist of only lowercase letters

Input Format

• First line contains w1, the word given by Cubo

• Second line contains w2, the word given by Dumbo

Output Format

print "Dumbo" if Dumbo wins the game, else print "Cubo"

Scoring

• For 90% of total score, 0 ≤ w1.length, w2.length ≤ 100
• For 100% of total score, original constraints