2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/60341Based on Schützenberger's evacuation and a modification of jeu de taquin, we give a bijective proof of an identity connecting the generating function of reverse semistandard Young tableaux with bounded entries with the generating function of all semistandard Young tableaux. This solves Exercise 7.102 b of Richard Stanley's book `Enumerative Combinatorics 2'.13 pages, LaTeXCombinatorics05E10text