ormaaj 1681245327 learn # seq 9 | sort -R | tee >({ tr \\n ' '; echo; } >&2) | sed -Ee 'y/zwixuvoenrf/02654718935/;s/th?|51|s8?//;s/(.).*/\1     /' | tr \\n ' '; echo
ormaaj 1708492590 forget
ormaaj 1708492602 learn # seq 9 | sort -R | sed -Ee 'h;y/zwixuvoenrf/02654718935/;s/th?|51|s8?//;s/(.).*/\1/;G' | paste -sd ' ' - -