( /LYNX/AMNUEL/bomba.txt )
. 1. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 2. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 3. x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 4. x x x x x x x x x x x x x x x x x x x x x x x x