#!perl $:='-';$:.=$".$:,$"x=3for 1..pop;print"$: "
#!perl $:='-';$:.=$".$:,$"x=3for 1..shift;print"$: "
#!perl $/='-';$/.=' 'x(3**$i++).$/while$i<$ARGV[0];print"$/ "