var a,b,c,d,e:longint;
begin
read(a);
b:=a mod 10;
c:=a div 10 mod 10;
d:=a div 100;
e:=b*100000+c*10000+d*1000+a;
write(e);
end.
/**************************************************************
	Problem: 1620
	User: admin
	Language: Pascal
	Result: Wrong Answer
****************************************************************/