public static void main ( String [ ] args ) {
  FastScanner scan = new FastScanner ( ) ;
  PrintWriter out = new PrintWriter ( System . out ) ;
  long n = scan . nextInt ( ) , k = scan . nextInt ( ) ;
  out . println ( n + ( k - n % k ) ) ;
  out . close ( ) ;
}

public static void main ( String [ ] args ) { FastScanner scan = new FastScanner ( ) ; PrintWriter out = new PrintWriter ( System . out ) ; long n = scan . nextInt ( ) , k = scan . nextInt ( ) ; out . println ( n + ( k - n % k ) ) ; out . close ( ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list)))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (type_identifier) arguments: (argument_list (field_access object: (identifier) field: (identifier)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (identifier)))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))