  The superconductivity in cold dense QCD with three massless flavors is
analyzed in the framework of the Schwinger-Dyson equation. The set of two
coupled gap equations for the color antitriplet, flavor antitriplet
(bar{3},bar{3}) and the color sextet, flavor sextet (6,6) order parameters is
derived. It is shown that the antitriplet-antitriplet gives the dominant
contribution to the color-flavor locked order parameter, while the
sextet-sextet is small but nonzero.
