( /LYNX/DECAMP/bzg.txt )
. 1 x x x x x x x x x 2 3 x x x x x x 4 x x x x x x 5 x x x 6 7 x x x 8 x x x 9 x x x 10 x x x 11 x x x x x x 12 13 14 15 16 x x x 17 x x x 18 19 20 x x x