On the circumcircle of the scalene triangle ABC, let A0, B0, and C0 be the midpoints of the arcs BAC, CBA and ACB, respectively. Denote by A1, B1 and C1 the Feuerbach points of the triangles AB0C0, BC0A0 and CA0B0, respectively. Show that the triangles A0B0C0 and A1B1C1 are similar. Russian problem (5 pont)
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