<b_jonas> slashlearn aoc/Advent of Code (AoC) is a series of programming puzzles that some regulars enjoy, found at "https://adventofcode.com/2019/about".

lastfiles "$@" | while read f; do echo -n "$f//"; hg cat -r "$(hg log --removed --template '{rev}\n' "$f" | tail -n+2 | head -n1)" "$f"; done