pushit

function push()
while turtle.detect() == true do
  turtle.dig()
  sleep(.4)
  end
end

function step()
if turtle.forward() then
  else
  push()
  turtle.forward()
  end
end

function flip()
  for i=1, 40 do
  push()
  turtle.digUp()
  turtle.up()
  end

  for p=1, 40 do
  turtle.down()
  end
end

function drop()
  turtle.digDown()
  turtle.placeDown()
end


function ret()
  turtle.turnLeft()
  for i=1, 62 do
  step()
  end

  turtle.turnRight()

  for m=1, 11 do
  step()
  end
end


for x=1, 62 do

  flip() --1
  turtle.select(1)
  drop()
  step()

  flip()  --2
  turtle.select(2)
  drop()
  step()

  flip()  --3
  turtle.select(3)
  drop()
  step()

  flip()  --4
  turtle.select(4)
  drop()
  step()

  flip()  --5
  turtle.select(5)
  drop()
  step()

  flip()  --6
  turtle.select(6)
  drop()
  step()

  flip()  --7
  turtle.select(7)
  drop()
  step()

  flip()  --8
  turtle.select(8)
  drop()
  step()

  flip()  --9
  turtle.select(9)
  drop()
  step()

  flip()  --10
  turtle.select(10)
  drop()
  step()

  flip()  --11
  turtle.select(11)
  drop()
  step()

  for v=1, 11 do
  turtle.back()
  end

  turtle.turnRight()
  push()
  step()
  turtle.turnLeft()
end

ret()