  A simple argument is presented in favour of the equidistant spectrum in
semiclassical limit for the horizon area of a black hole. The following
quantization rules for the mass $M_N$ and horizon area $A_{Nj}$ are proposed:
M_N = m_p [N(N+1)]^{1/4}; A_{Nj} = 8\pi l_p^2 [\sqrt{N(N+1)} + \sqrt{N(N+1) -
j(j+1)} ]. Here both $N$ and $j$ are nonnegative integers or half-integers.
