Program AddNums(output);
var n,i,j,a,ans,minim:integer;
    xyesos: array of integer;
begin
    SetLength(Xyesos, 10);
    for i:=0 to 9 do
        xyesos[i]:=0;
    readln(n);
    for i:=1 to n do begin
        readln(a);
        while a>0 do begin
            xyesos[a mod 10]+=1;
            a:=a div 10;
        end;
    end;
    for i:=0 to 9 do begin
        minim:=$7fff;
        ans:=-1;
        for j:=9 downto 0 do begin
            if (xyesos[J]<minim) and (xyesos[j]>0) then begin
                minim:=xyesos[j];
                ans:=j;
            end;
        end;
        if ans>-1 then begin
            write(ans,' ');
            xyesos[ans]:=0;
        end;
    end;
end.