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1	#!/bin/sh
2	set -eu
3
4	# Converts a base-16 hash argument to base-62, using only the shell
5	# and utilities specified by POSIX.1-2024.
6
7	hash16="$(printf "%s" "$1" \| tr a-f A-F)"
8	printf "obase=62; ibase=16; %s\n" "$hash16" \| bc \| {
9	# `bc` prints a sequence of ordinal values split across multiple
10	# lines using backslash as a continuation character. `read` will,

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1	Hello world