write("")
a = tonumber(read())
b = 0
turtle.refuel(1)
while b < a do
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.turnLeft
    turtle.forward()
    turtle.turnRight()
    turtle.dig()
    turtle.down()
    turtle.dig()
    turtle.down()
    turtle.dig()
    turtle.down()
    turtle.dig()
    turtle.down()
    turtle.dig()
    turtle.down()
    turtle.turnRight
    turtle.forward()
    turtle.forward()
    turtle.turnLeft()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.dig()
    turtle.up()
    turtle.turnLeft()
    turtle.forward()
    turtle.turnRight()
    turtle.down()
    turtle.down()
    turtle.down()
    turtle.down()