s/$/BCDEFGHI/ s/./&N& 1N& 2N& 3N& 4N& 5N& 6N& 7N& 8N& 9N/g s/^/zeroN1N2N3N4N5N6N7N8N9NtenNelevenNtwelveNthirT4TfifT6T7TeighT9T/ s/T/teenN/g s/B/twenty/g s/C/thirty/g s/D/forty/g s/E/fifty/g s/F/6ty/g s/G/7ty/g s/H/8y/g s/I/9ty/g s/1/one/g s/2/two/g s/3/three/g s/4/four/g s/5/five/g s/6/six/g s/7/seven/g s/8/eight/g s/9/nine/g s/$/one hundred/ y/N/\n/
Note that non-ascii characters in the above source code will be escaped (such as \x9f).