roundrect 0 10 80 90 10 10
label 10 20 ~
label 10 80 ~
label 70 20 +
label 70 80 -
moveto 30 40
lineto 30 60
moveto 50 40
lineto 50 60
moveto 30 40
lineto 50 50
moveto 30 60
lineto 50 50
moveto 20 50 
lineto 60 50