begin
var pow: BigInteger := 1;
var sum := 1;
var n := 0;
while n < 2 do
Print('n =');
read(n)
end;
for var i := 2 to n do
sum += i;
pow *= sum
Print(pow)
end.
begin
var pow: BigInteger := 1;
var sum := 1;
var n := 0;
while n < 2 do
begin
Print('n =');
read(n)
end;
for var i := 2 to n do
begin
sum += i;
pow *= sum
end;
Print(pow)
end.