var
x,v,rez:real;
i,j:integer;
begin
write('Vvedite x=');
readln(x);
i:=4;
while (i>=1) do
begin
v:=1;
for j:=1 to i do
v:=v*x;
case i of
4: rez:=rez+2*v;
3: rez:=rez-3*v;
2: rez:=rez+4*v;
1: rez:=rez-5*v;
end;
dec(i);
end;
rez:=rez+6;
writeln('Result: ',rez);
readln
end.