Curious Fleas

Problem Number: 
11 329
Type of Problem: 
Single Output Problem
Problem Category: 
Volume 113 (11,300-11,399)
Input: 
Random Input
0
0
Critical Input: 
Random Input: 
10 .X.. XDX. .X.X X... DX.X .X.. ..X. X..X ...X XXXX D..X .... XXX. XX.. .DX. .... DXX. ...X ...X X..X .X.. X.XD .X.X X... .XX. XX.. .DX. X... XXX. XX.. .DX. .... .XX. ...X .XD. X..X XX.. .X.D ..X. X..X
Problem Description Link: 
https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&category=1…
Problem Id: 
11329