<boily> le/rn \xc3\xb6rjan/\xc3\x96rjan is the di\xc3\xa6resed twin. He will punctuate your v\xc3\xb6\xe1\xba\x85\xc3\xabls, and maybe a few other unsuspecting letters.

#!/bin/bash
declare {{a..h},{j..t}}="$((i++))" letters=({{a..h},{j..t}}); while read -r; do echo "${letters[18-${REPLY:0:1}]}$((20-${REPLY:1}))"; done