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uses
math;
var
s : string;
Begin
{$ifdef FPC_HAS_TYPE_EXTENDED}
str(intpower(2,63),s);
if s<>' 9.2233720368547758E+0018' then
begin
WriteLn(intpower(2,63));
halt(1);
end;
{$endif FPC_HAS_TYPE_EXTENDED}
{$ifdef FPC_HAS_TYPE_DOUBLE}
str(double(intpower(2,63)),s);
{$ifdef FPC_HAS_TYPE_EXTENDED}
if s<>' 9.22337203685478E+018' then
{$else FPC_HAS_TYPE_EXTENDED}
if s<>' 9.22337203685478E+018' then
{$endif FPC_HAS_TYPE_EXTENDED}
begin
WriteLn(double(intpower(2,63)));
halt(1);
end;
{$endif FPC_HAS_TYPE_DOUBLE}
end.
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