//  

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

//_________________________________________________________

 ()
    .("");
	 = ;

//_________________________________________________________

//   1-   ...,     
 ()
	 i=1  ..() 
		 ..(i) = . 
			 ..()<>1 
				.=..;
			;

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

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

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

//_________________________________________________________

//   1-   ,    1
 ()
	 i=1  ..() 
		 ..(i) = . 
			 ..()<>1 
				.=..;
			;

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

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

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

//_________________________________________________________

 ()
	 , , ;
	=12; =0; =0;
	 () = 0  
		(" :  !!!"); 
	;
    
	 () = 0  
		(" :  !!!"); 
	;
	
	 =1 
		("", , , );	
		.(, , );
	;
	(_, _, _);
	 =1 
		.=((), _, _, _);
		. = ();
	
		.=((), _, _, _);
		. = ();
	;
	=0;
	();
	 ()=1 
		  = 1  ..() 
			 (.())=1 
				 ("     "+());
				(0);
				;
			;
		;
		  = 1  ..() 
			 (.())=1 
				 ("     "+());
				(0);
				;
			;
		;
	;

//_________________________________________________________



// <<...>>         
 1()
	 = ("");
	.("1");
	.("");
	.(0,0,.(),0);
	();
	=1;
	 ()=1 
		.("_1");
		=+1;
	;
	.("");
	.(1); 
	.(,,,,,,,,,1); 
	.(" ","");


