//#1
var
a, b: array of integer;
n: integer;
procedure parse(var a, b: array of integer; n: integer);
begin
var sum_p: integer := 0;
var sum_m: integer := 0;
var data: integer := 0;
setlength(a, n); setlength(b, n);
var i:integer;
for i := low(a) to high(a) do
begin
readln(a[i]); readln(b[i]);
sum_p += 3a[i];//kov vo zabitix myachei
sum_m += b[i];//kol vo promaxov
if b[i] > 1 then inc(data);
end;
writeln(sum_p - sum_m);
writeln(data);
end;
begin
readln(n);
parse(a, b, n);
end.
//#2
var
a: array of integer;
n: integer;
procedure parse(var a: array of integer; n: integer);
var
i: integer;
begin
var data: integer := 0;
setlength(a, n);
var sum: integer := 0;
for i := low(a) to high(a) do begin read(a[i]); sum += a[i]; if a[i] < 0 then inc(data); end;
writeln(sum / (high(a) + 1):0:4);
write(data);
end;
begin
readln(n);
parse(a, n);
end.
begin
Task('Integer8');
var a,b,c:integer;
read(c);
a:=c div 10;
b:=c mod 10;
c:=b*10+a;
writeln(c);
end.