find something.
1. copy all the lines of this file, and paste to your new file. 
2. erase all the letter 'X'. 
3. erase all the letter 'A', and type one space instead.
4. add several spaces as to set '0' to the same column for all lines.
5. you will find something fun.


    0 <---            set '0' at this column               ---->0
----0-----------------------------------------------------------0
 0          X        A           A       XX     A               0
  X        0  ######        X        A A    XX            XX               0
 0  #     #  ######  ######   #####  #       ######   ####   0
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
     XX    0  #     #  #    X   #          #    #       #       #       0
  0  ######   #####   #####      #    #   X    #####    ####   0
    XX   0  #     #  #   XX    #   X       #    #       #            #  0
  X    0  #  X   #  #    X   #          #    #       #       #    #  0
 0  ######   ######  ######     #    ######  ######   ####   0
  A  0    A   XX     A    A   XXX           X         XX    XX             0
   AA   0      X     ////\\     //||\\     //\|\\      ///||\        0
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
 0   X        /`O-O'     ` @ @\     //o o//       a a         0
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
     0     X     X    ]     XXXX     >   X     ) | (   X      _)    X     0
  AAA   0          XX    -          -          -    XX       ~          0
 X 0    X        JoXhn  X      XPaul  X    GXeorge      RingoX        0
        0           A   A       XXX        A   A   A                   0
----0-----------------------------------------------------------0