program ct;
uses crt;
var i,n,Max,Min,s:integer;tbc:real;
A:array[1..100] of integer;
begin
clrscr;
write('nhap n:=');readln(n);
for i:=1 to n do
begin
write('nhap mang A[',i,']:=');readln(A[i]);
end;
Max:=A[1]; Min:=A[1];
for i:=2 to n do
begin
if Max<A[i] then Max:=A[i];
if Min>A[i] then Min:=A[i];
end;
writeln('gia tri lon nhat la',Max);
writeln('gia tri nho nhat la',Min);
s:=0;
for i:=1 to n do
begin
s:=s+A[i];
tbc:=s/n;
end;
writeln('trung binh cong la:',tbc:2:4);
readln
end.