11 x 21
draw row 0
draw row 2
draw row 4
draw row 6
draw row 8
draw row 10
draw col 0
draw col 4
draw col 8
draw col 12
draw col 16
draw col 20
draw @ 1 2
draw @ 5 2
draw @ 9 2
draw @ 3 6
draw @ 7 6
draw @ 1 10
draw @ 5 10
draw @ 9 10
draw @ 3 14
draw @ 7 14
draw @ 1 18
draw @ 5 18
draw @ 9 18
show
quit