startup

x,y,z = commands.getBlockPosition()

for yc = y+1, y+3 do
  for xc = x+2, x+6 do
commands.setBlock(xc,yc,z+2, "minecraft:stone")
end
end

for yc = y+1, y+3 do
  for zc = z-1,z+2 do
  commands.setBlock(x+2,yc,zc, "minecraft:stone")
end
end