local read, write = io.read, io.write
local i,num, nl = '*n', '\n'
while (num>=1 and num<=10) do
local sum=0
  while(i<=num/2) do
   if(num%i==0) then
    sum=sum+i
   end
  end
   if(sum==num) then
     write(num,nl)
   end
end