In determining the amount of any increase in the combined level involved under paragraph (1)(B) of this subsection, any portion of such amount which would otherwise be attributable to the increase under section 1382f(c) of this title shall be deemed instead to be equal to the amount of the cost-of-living adjustment which would have occurred in July 1983 (without regard to the 3-percent limitation contained in section 415(i)(1)(B) of this title ) if section 111 of the Social Security Amendments of 1983 had not been enacted.