FrFr3DdE3

while turtle.detect() do
 turtle.dig()
 print("Digging the block")
 turtle.up()
 print("Moving up")
end
while not turtle.detect() and not turtle.detectDown() do
 turtle.down()
 print("Moving down")
end
while turtle.detect("chest") do
 turtle.unload
 print("unload to chest")
end