Var
 X,Y:String;
 i:byte;
 Sx,Sy,Sz:Set of Char;
Begin
 Write('Word X: ');
 Readln(X);
 Write('Word Y: ');
 Readln(Y);
 Sx:=[];
 For i:=1 to Length(X) do Sx:=Sx+[X[i]];
 Sy:=[];
 For i:=1 to Length(Y) do Sy:=Sy+[Y[i]];
 Sz:=Sx*Sy;
 Writeln('Result:');
 For i:=1 to Length(X) do
  if Not(X[i] in Sz) then write(X[i]);
 Writeln;
 For i:=1 to Length(Y) do
  if Not(Y[i] in Sz) then write(Y[i]);
 Readln
End.

Var
 X,Y:String;
 i,j:byte;
 b:boolean;
Begin
 Write('Word X: ');
 Readln(X);
 Write('Word Y: ');
 Readln(Y);
 Writeln('Result:');
 For i:=1 to Length(X) do
  begin
   j:=0;
   b:=true;
   repeat
    Inc(j);
    if X[i]=Y[j] then b:=false;
   until Not(b) or (j=Length(Y));
   If b then write(X[i]);
  end;
 Writeln;
 For i:=1 to Length(Y) do
  begin
   j:=0;
   b:=true;
   repeat
    Inc(j);
    if Y[i]=X[j] then b:=false;
   until Not(b) or (j=Length(X));
   If b then write(Y[i]);
  end;
 Readln
End.