public static void main ( String [ ] args ) throws Exception {
  FastReader sc = new FastReader ( ) ;
  StringBuilder sb = new StringBuilder ( ) ;
  int n = sc . nextInt ( ) ;
  int max = sc . nextInt ( ) ;
  int d = max ;
  for ( int i = 1 ;
  i < n ;
  i ++ ) {
    int temp = sc . nextInt ( ) ;
    max = Math . max ( max , temp ) ;
    d = gcd ( d , temp ) ;
  }
  System . out . println ( ( ( max / d ) - n ) % 2 == 1 ? "Alice" : "Bob" ) ;
}

public static void main ( String [ ] args ) throws Exception { FastReader sc = new FastReader ( ) ; StringBuilder sb = new StringBuilder ( ) ; int n = sc . nextInt ( ) ; int max = sc . nextInt ( ) ; int d = max ; for ( int i = 1 ; i < n ; i ++ ) { int temp = sc . nextInt ( ) ; max = Math . max ( max , temp ) ; d = gcd ( d , temp ) ; } System . out . println ( ( ( max / d ) - n ) % 2 == 1 ? " Alice " : " Bob " ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) (throws (type_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)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (identifier))))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (ternary_expression condition: (binary_expression left: (binary_expression left: (parenthesized_expression (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (identifier))) right: (identifier))) right: (decimal_integer_literal)) right: (decimal_integer_literal)) consequence: (string_literal) alternative: (string_literal)))))))