! Document name: ╡Nelijalkalevy

! ╡Nelijalkalevy
! (c) M.A.D. Severi Virolainen 910606

addx f
addy f
block e,e,c-d
addx a-e-2*f
block e,e,c-d
addy b-e-2*f
block e,e,c-d
addx e-a+2*f
block e,e,c-d
del top
addz c-d
block a,b,d
del top
end