term.clear()
term.setCursorPos(1,1)
print ("Mining Started...")

for i = 1, 3 do
  shell.run("down")
end

for i = 1, 73 do
  shell.run("dig")
  shell.run("down")
end

-- Up
sleep(3)

print ("Returning to surface")

for i = 1, 76 do
  shell.run("up")
end

print ("Arrived at surface. Ready to move on")