Var
 S,S1:String;
 i,k:Byte;

Begin
 Repeat
  k:=0;
  Writeln('Enter the string:');
  Readln(S);
  for i:=1 to Length(S) do
   if S[i]='.' then Inc(k);
  if k<2 then Writeln('The string must contain at least two "."');
 Until k>=2;
 S1:='';
 i:=0;
 Repeat
  Inc(i);
  if S[i]<>'.' then S1:=S1+S[i];
 Until S[i]='.';
 S1:=S1+'.';
 Repeat
  Inc(i);
  if S[i]<>'.' then S1:=S1+'!';
 Until S[i]='.';
 S1:=S1+'.';
 Repeat
  Inc(i);
  S1:=S1+S[i];
 Until i>=Length(S);
 Writeln(S1);
 Readln
End.

Var
 S:String;
 i,k,k1,k2:Byte;

Begin
 Repeat
  k:=0;
  Writeln('Enter the string:');
  Readln(S);
  for i:=1 to Length(S) do
   if S[i]='.' then Inc(k);
  if k<2 then Writeln('The string must contain at least two "."');
 Until k>=2;
 i:=0;
 Repeat
  Inc(i);
 Until S[i]='.';
 k1:=i;
 Repeat
  Inc(i);
 Until S[i]='.';
 k2:=i;
 Delete(S,k1+1,k2-k1-1);
 for i:=k1+1 to k2-1 do Insert('!',S,k1+1);
 Writeln(S);
 Readln
End.

Var
 W:Array[1..100] of String;
 S:String;
 i,j,N,L:byte;

Begin
 Writeln('Enter the string');
 Readln(S);
 L:=Length(S);
 Writeln;
 j:=1;
 i:=0;
 Repeat
  W[j]:='';
  repeat
   Inc(i);
  until S[i]<>' ';
  if i<L then
   begin
    while (S[i]<>' ') and (i<=L) do
     begin
      W[j]:=W[j]+S[i];
      Inc(i);
     end;
   end;
  if i<L then Inc(j);
 Until i>=L;
 N:=j;

 for j:=1 to N do
  if (Length(W[j]) mod 2)=1 then write(W[j]+' ');

 Readln
End.

Var
 S,W:String;
 i,k:byte;

Begin
 Writeln('Enter the string');
 Readln(S);
 Writeln;
 i:=0;
 Repeat
  W:='';
  repeat
   Inc(i);
  until S[i]<>' ';
  if i<Length(S) then
   begin
    k:=i;
    while (S[i]<>' ') and (i<=Length(S)) do
     begin
      W:=W+S[i];
      Inc(i);
     end;
    if (Length(W) mod 2)=0 then
     begin
      Delete(S,k,Length(W));
      Dec(i,Length(W));
     end;
   end;
 Until i>=Length(S);

 Writeln(S);

 Readln
End.