# Generates the sequence of turns needed to draw a dragon curve;
# see: http://en.wikipedia.org/wiki/Dragon_curve
def dragon(n turns)
    if =(n 0)
        ""
    else
        +(+(dragon(-(n 1) "R") turns) dragon(-(n 1) "L"))
    end
end

def main()
    display(dragon(5 ""))
end