Now ACM/ICPC has thrown Pascal for a long time, and OI would throw it soon.

And XDOJ server doesn't have Pascal compiler installed at now.

The last Pascal speaking ACMers in XDU ACM would retire soon. 

Let's say goodbye to Pascal.

begin

writeln('Goodbye, Pascal.');

end.

If you still cherish the memory of Pascal, maybe you could

#define begin {

#define end }

...

and have some fun :-).

XDU ACM

2017.6.2