function DROP(dropslot, top_bottom)
  turtle.select(dropslot)
  if top_bottom == 1 then
    turtle.dropUp(1)
  else
    turtle.dropDown(1)
  end
end
function SUCK(top_bottom)
  for slot=1,4 do
    turtle.select(slot)
    if top_bottom == 1 then
      turtle.suckUp()
    else
      turtle.suckDown()
    end
  end
end
function GET_RID_OF()
  turtle.select(4)
  turtle.drop()
end
function GET_NEW()
  turtle.select(4)
  turtle.suck(6)
end
function INSERT(top_bottom)
  for line=1,2 do
    for pattern=1,3 do
      for slot=1,3 do
        DROP(slot, top_bottom)
      end
    end
    for pattern=1,3 do
      DROP(2, top_bottom)
      DROP(4, top_bottom)
      DROP(2, top_bottom)
    end
    for pattern=1,3 do
      for slot=1,3 do
        DROP(4-slot, top_bottom)
      end
    end
  end
end
function GET_TO(reactornum)
  turtle.up()
  local temp = math.ceil(reactornum/6)-1
  if temp ~= 0 then
    for i=0,temp do
      for j=1,5 do
        turtle.up()
      end
    end
  end
  for i=1,3 do
    turtle.forward()
  end
  if ( reactornum%6 == 1 ) or ( reactornum%6 == 4 ) then
    turtle.turnRight()
    for xtoreac=1,4 do
      turtle.forward()
    end
    turtle.turnLeft()
  else
    if ( reactornum%6 == 3 ) or ( reactornum%6 == 0 ) then
      turtle.turnLeft()
      for xtoreactor=1,4 do
        turtle.forward()
      end
      turtle.turnRight()
    end
  end
end
function GET_REACTOR(reactornum)
  if ( reactornum%6 <= 3 ) and ( reactornum%6 ~= 0 ) then
    turtle.down()
    SUCK(0)
    turtle.up()
  else
    turtle.up()
    SUCK(1)
    turtle.down()
  end
end
function PUT_REACTOR(reactornum)
  if ( reactornum%6 <= 3 ) and ( reactornum%6 ~= 0 ) then
    turtle.down()
    INSERT(0)
    turtle.up()
  else
    turtle.up()
    INSERT(1)
    turtle.down()
  end
end
function GET_BACK(reactornum)
  if ( reactornum%6 == 1 ) or ( reactornum%6 == 4 ) then
    turtle.turnLeft()
    for i=1,4 do
      turtle.forward()
    end
    turtle.turnLeft()
  else
    if ( reactornum%6 == 3 ) or ( reactornum%6 == 0 ) then
      turtle.turnRight()
      for i=1,4 do
        turtle.forward()
      end
      turtle.turnRight()
    else
      turtle.turnLeft()
      turtle.turnLeft()
    end
  end
  for i=1,3 do
    turtle.forward()
  end
  local temp = math.ceil(reactornum/6)-1
  if temp ~= 0 then
    for i=0,temp do
      for j=1,5 do
        turtle.down()
      end
    end
  end
  turtle.down()
  turtle.turnLeft()
  turtle.turnLeft()
end
function REACTOR_RENEW(reactornum)
  local ReacFuel=0
  local Fuel = true
  GET_TO(reactornum)
  GET_REACTOR(reactornum)
  GET_BACK(reactornum)
  turtle.turnLeft()
  GET_RID_OF()
  turtle.turnLeft()
  GET_NEW()
  if turtle.getItemDetail(4).name == "ic2:quad_mox_fuel_rod" then
    ReacFuel=1
  else
    if turtle.getItemDetail(4).name == "ic2:quad_uranium_fuel_rod" then
      ReacFuel=2
    end
  end
  turtle.turnLeft()
  while Fuel do
    if turtle.getFuelLevel() < 1000 then
      turtle.select(16)
      turtle.suck(1)
      turtle.drop()
    else
      Fuel = false
    end
  end
  turtle.turnLeft()
  GET_TO(reactornum)
  PUT_REACTOR(reactornum)
  GET_BACK(reactornum)
  return ReacFuel
end
while true do
  local ReacFuel=0
  local Table = {0}
  print(Table[1])
  if fs.exists("disk/turt_ask") then
    TurtAsk = fs.open("disk/turt_ask", "r")
    Table[1] = tonumber(TurtAsk.readLine())
    TurtAsk.close()
    if Table[1] ~= 0 then
      TurtAsk = fs.open("disk/turt_ask", "r")
      Table[1] = tonumber(TurtAsk.readLine())
      for i=1,Table[1] do
        table.insert(Table, tonumber(TurtAsk.readLine()))
      end
      TurtAsk.close()
      TurtState = fs.open("disk/turt_state", "w")
      TurtState.writeLine(1)
      TurtState.close()
    end
  else
    sleep(10)
  end
  if Table[1] ~= 0 then
    for i=1,Table[1] do
      reactor=i+1
      ReacFuel=REACTOR_RENEW(Table[reactor])
    end
  else
    sleep(10)
  end
  TurtAns = fs.open("disk/turt_answer", "w")
  TurtAns.writeLine(Table[1])
  if Table[1] ~= 0 then
    for i=1,Table[1] do
      reactor=i+1
      TurtAns.writeLine(Table[reactor])
      TurtAns.writeLine(0)
      TurtAns.writeLine(ReacFuel)
    end
  end
  TurtAns.close()
  if Table[1] ~= 0 then
    sleep(11)
    TurtAsk = fs.open("disk/turt_ask", "w")
    TurtAsk.writeLine(0)
    TurtAsk.close()
    TurtState = fs.open("disk/turt_state", "w")
    TurtState.writeLine(0)
    TurtState.close()
  end
end