function iff (x,y,z)
if a[x][y][z]==1 then
turtle.select(1)
elseif a[x][y][z]==2 then
turtle.select(2)
elseif a[x][y][z]==3 then
turtle.select(3)
elseif a[x][y][z]==4 then
turtle.select(4)
elseif a[x][y][z]==5 then
turtle.select(5)
elseif a[x][y][z]==6 then
turtle.select(6)
elseif a[x][y][z]==0 then
turtle.select(7)
end
end


a = {{{0,0,0,0,0,0,0,0,0},
      {0,0,1,1,0,1,1,0,0},
      {0,0,1,1,0,1,1,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}},

     {{0,0,0,0,0,0,0,0,0},
      {0,0,2,2,0,2,2,0,2},
      {0,0,2,2,0,2,2,0,2},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}},

     {{0,0,0,0,0,0,0,0,0},
      {0,0,2,3,0,2,2,0,2},
      {0,0,2,3,0,2,2,0,2},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}},

     {{0,0,0,0,0,0,0,0,0},
      {0,0,0,1,1,1,0,0,2},
      {0,0,0,1,1,1,0,0,2},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}},

     {{0,0,2,2,2,2,2,0,0},
      {0,0,2,2,2,2,2,0,2},
      {0,0,2,2,2,2,2,0,2},
      {0,0,2,3,2,2,2,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}},

     {{0,0,2,2,2,2,2,0,0},
      {2,1,2,2,2,2,2,1,2},
      {2,1,2,2,2,2,2,1,2},
      {4,0,1,2,2,2,2,0,0},
      {4,0,0,0,0,0,0,0,0},
      {3,0,0,0,0,0,0,0,0},
      {4,0,0,0,0,0,0,0,0}},

     {{0,0,4,4,4,4,4,0,0},
      {4,1,4,4,4,4,4,1,4},
      {4,1,4,4,4,4,4,1,4},
      {3,0,4,4,4,4,4,0,0},
      {4,0,0,0,0,0,0,0,0},
      {4,0,0,0,0,0,0,0,0},
      {4,0,0,0,0,0,0,0,0}},

     {{0,0,0,0,0,0,0,0,0},
      {0,0,0,4,4,4,0,0,0},
      {0,0,0,4,4,4,0,0,0},
      {0,0,0,0,1,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {5,0,0,0,0,0,0,0,0}},

     {{0,0,0,0,0,0,0,0,0},
      {0,0,0,4,4,4,0,0,0},
      {0,0,0,6,4,6,0,0,0},
      {0,0,0,0,1,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}},

     {{0,0,0,0,0,0,0,0,0},
      {0,0,0,4,4,4,0,0,0},
      {0,0,0,4,4,4,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0},
      {0,0,0,0,0,0,0,0,0}}}

turtle.up()
for x=1, #a do
 for y=1, #a[x] do
  for z=1, #a[x][y] do
   iff(x,y,z)
   turtle.placeDown()
   turtle.forward()
 end


turtle.turnRight()
turtle.forward()
turtle.turnRight()

for y = 1,#a[x][y] do
turtle.forward()
end


turtle.turnRight()
turtle.turnRight()
end

turtle.turnLeft()
for y = 1,#a[x] do
turtle.forward()

end
turtle.turnRight()
turtle.up()
end