// Program to test recursion
program
var 
	fact = funct( n ) 
		begin
			if n == 0 then
				return 1;
			else
				return n * fact( n - 1 );
			end
		end,
	i;
begin
	for i = 0; i < 10; i = i + 1 do
		print( i + " " );
		println( fact( i ) );
	end
end.