program filip;
var a,b,xc,xd,c,d,yc,yd,qc,qd:integer;
begin
  readln (c,d);
  xc:=c div 100;
  yc:=(c-xc*100) div 10;
  qc:=c-xc*100-yc*10;
  xd:=d div 100;
  yd:=(d-xd*100) div 10;
  qd:=d-xd*100-yd*10;
  a:=xc+yc*10+qc*100;
  b:=xd+yd*10+qd*100;
  if a<b then write(b) else write(a);
end.