s/$/:twen:thir:four:fif:six:seven:eigh:nine:/
h
s/\(\w*\):/@\1ty /g
s/u//
s/@\w* /&&one&two&three&four&five&six&seven&eight&nine/g
G
s/\(twe.*\):.*:\(t.*\)/ten@eleven@twelve@\2\1one hundred/
s/:/teen@/g
s/ *@\(ty \)*/\n/g
s/./zero/