local z={...}
local a=z[3]
local d=z[1]
local e=z[2]
local b=d-1
local c=e-1
 function reset1()
  turtle.turnLeft()
  turtle.forward()
  turtle.turnLeft()
  turtle.forward()
  turtle.turnRight()
 end

 function up()
  turtle.up()
  turtle.placeDown()
 end

 function reset()
  turtle.forward()
   for i = 1, a do
   turtle.down()
   end
 end

--program starts here
turtle.forward()

 for i = 1,b do
   for j = 1,a do
    up()
   end
  reset()
 end

reset1()

 for i = 1,c do
   for j = 1,a do
    up()
   end
  reset()
 end

reset1()

 for i = 1,b do
   for j = 1,a do
    up()
   end
  reset()
 end

reset1()

 for i = 1,c do
   for j = 1,a do
    up()
   end
  reset()
 end