var c,d:array[1..3] of integer;
a,b,i,a1,b1,j:integer;
begin
readln(a,b);
a1:=a;b1:=b;
c[1]:=a mod 10;
a:=a div 10;
c[2]:=a mod 10;
a:=a div 10;
c[3]:=a mod 10;
d[1]:=b mod 10;
b:=b div 10;
d[2]:=b mod 10;
b:=b div 10;
d[3]:=b mod 10;
if c[1]>d[1] then begin
        writeln(c[1],c[2],c[3]);
        end;
if d[1]>c[1] then begin
        writeln(d[1],d[2],d[3]);end;
if c[1]=d[1] then
        begin
        if c[2]>d[2] then begin
        writeln(c[1],c[2],c[3]);end;
        if d[2]>c[2] then begin
        writeln(d[1],d[2],d[3]);end;
        if c[2]=d[2] then
                begin
                if c[3]>d[3] then begin
        writeln(c[1],c[2],c[3]);end;
                if d[3]>c[3] then begin
       writeln(d[1],d[2],d[3]);end;
                if c[3]=d[3] then begin
        writeln(c[1],c[2],c[3]);end;
                end;
        end;

readln;
end.