var
a: array[1..15] of integer;
i, evenProduct: integer;
begin
evenProduct := 1;
for i := 1 to 15 do
begin
readln(a[i]);
if a[i] mod 2 = 0 then
begin
writeln('Even element found at index: ', i);
evenProduct := evenProduct * a[i];
end;
end;
writeln('The product of even elements is: ', evenProduct);
end.