var
i:integer;
s,sr:real;
a:array[1..30] of integer;
begin
sr:=0;
for i:=1 to 30 do
begin
a[i]:=random(20);
write(' ',a[i]:3);
end;
for i:=1 to 30 do
sr:=sr+a[i];
sr:=sr/30;
writeln();
writeln('----');
writeln(sr:4:3);
end.
var
i:integer;
s,sr:real;
a:array[1..30] of integer;
begin
sr:=0;
for i:=1 to 30 do
begin
a[i]:=random(20);
write(' ',a[i]:3);
end;
for i:=1 to 30 do
sr:=sr+a[i];
sr:=sr/30;
writeln();
writeln('----');
writeln(sr:4:3);
end.