var
a, b, kol, i: longint;
begin
readln(a, b);
if a <= b then
for i := a to b do
inc(kol, sqr(i))
else
for i := a downto b do
inc(kol, sqr(i));
writeln(kol);
end.
var
a, b, kol, i: longint;
begin
readln(a, b);
if a <= b then
for i := a to b do
inc(kol, sqr(i))
else
for i := a downto b do
inc(kol, sqr(i));
writeln(kol);
end.