const  n = 10;
var  a :array [1..n] of integer;  i, p :integer;
begin
  for i:= 1 to n do     readln(a[i]);  p:= 1;  for i:= 1 to n do    if (a[i] > 5) and (a[i] < 39) and (a[i] mod 4 = 0) then       p:= p * a[i];  writeln(p);
end.

23781703680
-----------------------------
product=1
(5..39).each {|i| product*=i if i%4==0}
p product
---------------------

var i :integer;
    p : real;
begin
    p := 1;
    for i := 5 to 39 do
        if i mod 4 = 0 then
            p:=p*i;

    writeln(p);
end.