program ime;
var a,b,v,h,c,w,e,r,t,q,s,u:integer;
begin
readln (a,q);
b:= a mod 10;
v:= a mod 100;
c:= v div 10;
h:= a div 100;
s:=(b*100+c*10+h);
w:= q mod 10;
e:= q mod 100;
r:= e div 10;
t:= q div 100;
u:=(w*100+r*10+t);
if (s>u) then writeln(s);
if (s<u) then writeln(u);
if (s=u) then writeln(s);
readln;
end.