  We present the results of numerical study of the phase dynamics of the
DC-SQUID with topologically trivial and nontrivial barriers. In our
calculations we take into account two components of supperconducting current,
Cooper pairs ($2\pi$-periodic) and Majorana fermions ($4\pi$-periodic)
currents. Magnetic field dependence of return current is presented. The
qualitative behavior of this dependence is explained. We show that in case of
two component superconducting current the periodicity of magnetic field
dependence of return current displaced by Cooper pairs and Majorana fermion
ratio over the magnetic field. This effect makes possible the experimental
determination of ratio of Cooper pairs and Majorana fermions currents.
