var
  s1,s2 : string;
  c1,c2 : char;
  d1,d2,d3 : longint;
begin
  readln(c1);
  readln(c2);
  readln(s1);
  s2:=s1;
  d1:=pos(c1,s1);
  d2:=pos(c2,s2);
  delete(s1,d1,1);
  delete(s1,d2+1,1);
  writeln(s1);
end.