program q222118069;
type
  TDynArray = array of Integer;
 
function Max(a: TDynArray): Integer;
var
  i: Integer;
begin
  Max := Low(a);
  for i := Low(a) to High(a) do
    if a[i] > a[Max] then
      Max := i;
  Max := a[Max];
end;
 
procedure RandAndPrint(var a: TDynArray; n: Integer);
var
  i: Integer;
begin
  SetLength(a, n);
  for i := Low(a) to High(a) do
  begin
    a[i] := Random(101) - 50;
    Write(a[i]:4);
  end;
  WriteLn;
end;
 
var
  n, m: Integer;
  a, b: TDynArray;
begin
  Randomize;
  ReadLn(n, m);
  RandAndPrint(a, n);
  RandAndPrint(b, m);
  if Max(a) > Max(b) then
    WriteLn(Max(a), '(A)')
  else
    WriteLn(Max(b), '(B)');
end.

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