This month's problem is our tribute to Jorge Luis Borges, the author of The Book of Sands and The Library of Babel.
The
Cabbalistic Encyclopedia of Permutations of the Roman Alphabet
consists of seven volumes listing the permutations of the 26letter Roman alphabet in alphabetical order. The volumes are very large, and written in very small print, because there are many of these permutations. Each volume contains exactly oneseventh of all permutations; if you open Volume 1 at the very first page and peer through your magnifying glass, you will see the first permutation
abcdefghijklmnopqrstuvwxyz
appearing at the top, followed immediately by
abcdefghijklmnopqrstuvwxzy.
Our problem: What is the very last permutation listed in this first volume?
