local a
a=1
while a<10001
do
	local s,sum=2,1
	while s<(a/2)
	do
		local x=a/s
		if ((x*s)==a)
		then
			sum=sum+s
		end
		s=s+1
	end	
	if(sum==a)
	then
		io.write(a)
	end	
	a=a+1
end