def Wdraw(t, e): return Vdraw(t, e)**2 + ((e - t) * pdf(e - t) + (e + t) * pdf(e + t)) / (cdf(e - t) - cdf(-e - t))
def Vdraw(t, e): return (pdf(-e - t) - pdf(e - t)) / (cdf(e - t) - cdf(-e - t))
def Vwin(t, e): return pdf(t - e) / cdf(t - e)
def Wdraw(t, e): return Vdraw(t, e) ** 2 + ((e-t) * pdf(e-t) + (e+t) * pdf(e+t)) / (cdf(e-t) - cdf(-e-t))
def Vdraw(t, e): return (pdf(-e-t) - pdf(e-t)) / (cdf(e-t) - cdf(-e-t))
def Vwin(t, e): return pdf(t-e) / cdf(t-e)