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local robot = require("robot")
local comp = require("computer")

function certus()
robot.select(1)
if  robot.count(1)==0 then return "false"
end
end

function glass()
  for i=2,8 do
  robot.select(i)
    if robot.count(i) ~= 0 then break
    elseif i == 8 then return "false"
    end
  end
end

function gran()
for i=9,16 do
robot.select(i)
    if robot.count(i) ~= 0 then break
    elseif i == 16 then return "false"
    end
  end
end

function zone()
 for i=1,4 do
  for i=1,31 do
   gran()
   robot.placeDown()
   robot.forward()
  end
  robot.turnRight()
 end
end

function wall()
for i=1,4 do

for i=1,2 do
glass()
robot.placeDown()
robot.forward()
end

gran()
robot.placeDown()
robot.forward()
certus()
robot.placeDown()
robot.forward()
gran()
robot.placeDown()
robot.forward()

for i=1,5 do
for i=1,2 do
glass()
robot.placeDown()
robot.forward()
end
for i=1,2 do
gran()
robot.placeDown()
robot.forward()
end
end

for i=1,2 do
glass()
robot.placeDown()
robot.forward()
end

gran()
robot.placeDown()
robot.forward()
certus()
robot.placeDown()
robot.forward()
gran()
robot.placeDown()
robot.forward()

glass()
robot.placeDown()
robot.forward()
robot.turnRight()
end
end

for i=1,4 do
robot.up()
wall()
end
robot.up()
zone()
end