program pr;
const
n = 10;
var
i, j, s: integer;
a, c7: array [1 .. n] of integer;
begin
s := 0;
j := 0;
for i := 1 to n do
readln(c7[i]);
for i := 1 to n do
if (c7[i] > 0) and odd(i) then
begin
inc(j);
a[j] := c7[i]
end;
if j <> 0 then
begin
for i := 1 to j do
begin
s := s + a[i];
write(a[i], ' ')
end;
writeln;
write(s / j:2:2)
end;
readln
end.