 ,,;
//_____________________________________________________________________________

 ()
 ;

=1;

	 .() = 0 
		=0;
	;

	 .() = 0 
		=0;
	;

	 .() = 0 
		=0;
	;

	 () = 0 
		=0;
	
	();
	 () = 1 
      <>  

		 .() = 0 
			=0;
			;
		;
		 .() = 0 
			=0;
			;
		;
	      = 0 
			=0;
			;
		;
	      = 0 
			=0;
			;
		;
		 ( = ..)  (() = 1) 
			=0;
			;
		;
	;
	;
	;
	 = -100;
	 =1 
		..(1);
	
		..(0);
	;


//_____________________________________________________________________________

 ()
	 = ("");
	 = ("");
	 = 1;
	 = ..;
	 . = .. 
		..(1);
	
		..(0);
	;
	..(0);
	();

//_____________________________________________________________________________

 ()
	.("");
//	..(1);
//	..(1);
	(1);
//	(,  ,);
    ();
	 = .();
    ..(1);
	 = .();

	 = ("");
    .(..);
    .(..);

	 . = .. 
		..(1);
	
		..(0);
	;

//_____________________________________________________________________________

 ()
	 .() = 1 
    	("",);
		 = .();
	;
	();

//_____________________________________________________________________________

 ()
	 .() = 1 
    	("",);
	     = .();
	;
	();

//_____________________________________________________________________________

 ()

	 .() = 1 
	     = ..();

		  = 0 
	        (" "++"     "++" !");
        	(0);
		;

		 . = .. 
	        (" "++"    ","!");
	    ;

	     = ..;
	     () > 0 
		      ("   "+.+"    ","!");
	    ;

		 = *;
		 = .;
	;


//_____________________________________________________________________________

 ()
	 = *;

//_____________________________________________________________________________

 ()
 = "";
 ( = ..) 
	("",".");

	("","");
;

//_____________________________________________________________________________

 ()
	();

	 ..()=0 
	(,",,,,");
	(0);
	;

	. = ("");
	. = "   .";


//_____________________________________________________________________________

 ()

	 .()=1 
		 .() <> 1 
			 = .;
		;
	;

//-----------------------------------------------------------

 ()
	 () = 1 
		..(0);
	
		..(1);
    ;
	 = ;
	();

//_____________________________________________________________________________

 (,)
	 ( = "")  
	 = 0;
		 .(,,,,2) = 1 
		();
		;
	;


//_____________________________________________________________________________

 ()
	();
	..(1);

//_____________________________________________________________________________

 ()
	..(1);

//_____________________________________________________________________________

 ()
	 () <> 0 
		 ("  ,    ."++"?","+") = "" 
			();
			..(0);
		;
	;
	();

//_____________________________________________________________________________

=0;