#A3-----------------------------------------------------
box bx 10 20 30  
nexplode bx f
depouille result bx 1 0 0 bx_2 4 0 0 0 1 0 0 \
bx_5 6 10 0 0 1 0 0 \
bx_4 5 0 0 0 1 0 0

set square 2191.56