# Bottles of beer in Navel
  Greg Michaelson
  greg@cee.hw.ac.uk #

def itos n = if n=0 then "0" else itos1 "" n;
def itos1 l n = if n=0 then l else itos1 (char (n%10+'0')):l n/10;
def verse n = {(itos n) " bottle(s) of beer on the wall\n"
               (itos n) " bottle(s) of beer on the wall\n"
               "Take one down and pass it around\n"
               (itos n-1) " bottle(s) of beer on the wall\n"};
def verses n = 
 if n=0
 then ()
 else
  let v = write (?(verse n))
  in verses n-1;