// largest common denominator of a and b
function lcD(a, b=10)
{
  if (b == 0) return a;
  else {
    if (a > b) return lcD(a-b, b);
    else return lcD(a, b-a);
  }
}
 
// compute a couple of lcDs
local x=1;
while(x < 10)
{
  print (lcD(x, 27)+"\n");
  x = x+1;
}