"#{t='thir'
b=%w[zero one two three four five six seven eight nine ten eleven twelve]
x=b[0,13]
g=['fif']+b[6,2]+%w[eigh nine]
([t,'four']+g).each{|i|x+=[i+'teen']}
(['twen',t,'for']+g).each{|u|j=u+'ty';x+=[j];9.times{|i|x+=[j+' '+b[i+1]]}}
puts x,'one hundred'}"