The funds appropriated by the Act of October 21, 1968 (82 Stat. 1190, 1198), to pay a judgment to the Blackfeet Tribe of the Blackfeet Indian Reservation, Montana, and the Gros Ventre Tribe of the Fort Belknap Reservation, Montana, in Indian Claims Commission docket numbered 279–A, together with interest thereon, after payment of attorney fees, litigation expenses, and the cost of carrying out the provisions of this subchapter, shall be divided by the Secretary of the Interior on the basis of 73.2 per centum to the Blackfeet Tribe and 26.8 per centum to the Gros Ventre Tribe.