Lawnmower

print("distance")
a = tonumber(read())
print("width")
i = tonumber(read())
b = 0
c = 0
while i > 0 do
    while b < a do
        turtle.dig()
        turtle.forward()
        b = b+1
    end
    i = i-1
    if b == a and c == 0 then
        turtle.turnRight()
        turtle.dig()
        turtle.forward()
        turtle.turnRight()
        c = c+1
        b = 0
    else
        turtle.turnLeft()
        turtle.dig()
        turtle.forward()
        turtle.turnLeft()
        c = c-1
        b = 0
    end
end