var
x, y, z, max, min: Double;
begin
Read (x, y, z);
if x > y then
max := x
else
max := y;
if z > max then
max := z;
if x < y then
min := x
min := y;
if z < min then
min := z;
Write (max * min)
end.
var
x, y, z, max, min: Double;
begin
Read (x, y, z);
if x > y then
max := x
else
max := y;
if z > max then
max := z;
if x < y then
min := x
else
min := y;
if z < min then
min := z;
Write (max * min)
end.