uses crt;
var a:array[1..1000000] of longint;
n,i,j,t,s,d,s1:longint;
begin
clrscr;
write('Nhap so luong phan tu: '); readln(n);
for i:=1 to n do
begin
write('Nhap so thu ',i,': '); readln(a[i]);
inc(s1,a[i]);
if a[i] mod 2=0 then inc(s,a[i]);
if a[i] mod 3=0 then inc(d);
end;
write('a) Cac so vua nhap: ');
for i:=1 to n do write(a[i],' '); writeln;
writeln('b) Tong cac phan tu chan: ',s);
writeln('c) Co ',d,' phan tu chia het cho 3');
writeln('d) Gia tri trung binh cac phan tu: ',s1/n:0:2);
for i:=1 to n-1 do
for j:=i+1 to n do
if a[i]>a[j] then
begin
t:=a[i];
a[i]:=a[j];
a[j]:=t;
end;
write('e) Day tang dan: ');
for i:=1 to n do write(a[i],' '); writeln;
for i:=1 to n-1 do
for j:=i+1 to n do
if a[i]<a[j] then
begin
t:=a[i];
a[i]:=a[j];
a[j]:=t;
end;
write(' Day giam dan: ');
for i:=1 to n do write(a[i],' '); writeln;
write('f) Danh sach cac so chan: ');
for i:=1 to n do if a[i] mod 2=0 then write(a[i],' '); writeln;
writeln(' Tong cua chung: ',s);
readln;
end.
