public static void main ( String [ ] args ) {
  int sum , x , counter = 0 ;
  ArrayList < Integer > max = new ArrayList < > ( ) ;
  Scanner scan = new Scanner ( System . in ) ;
  int i = 0 ;
  x = scan . nextInt ( ) ;
  int n [ ] = new int [ x ] ;
  if ( x == 1 ) {
    n [ 0 ] = scan . nextInt ( ) ;
    counter = 1 ;
    max . add ( 1 ) ;
  }
  else {
    for ( i = 0 ;
    i < x ;
    i ++ ) {
      n [ i ] = scan . nextInt ( ) ;
      if ( n [ i ] == 1 ) counter ++ ;
      if ( i != 0 & n [ i ] == 1 ) max . add ( n [ i - 1 ] ) ;
    }
    max . add ( n [ i - 1 ] ) ;
  }
  System . out . println ( counter ) ;
  max . forEach ( ( t ) -> {
    System . out . print ( t + " " ) ;
  }
  ) ;
}

public static void main ( String [ ] args ) { int sum , x , counter = 0 ; ArrayList < Integer > max = new ArrayList < > ( ) ; Scanner scan = new Scanner ( System . in ) ; int i = 0 ; x = scan . nextInt ( ) ; int n [ ] = new int [ x ] ; if ( x == 1 ) { n [ 0 ] = scan . nextInt ( ) ; counter = 1 ; max . add ( 1 ) ; } else { for ( i = 0 ; i < x ; i ++ ) { n [ i ] = scan . nextInt ( ) ; if ( n [ i ] == 1 ) counter ++ ; if ( i != 0 & n [ i ] == 1 ) max . add ( n [ i - 1 ] ) ; } max . add ( n [ i - 1 ] ) ; } System . out . println ( counter ) ; max . forEach ( ( t ) -> { System . out . print ( t + " ▁ " ) ; } ) ; }
(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: (integral_type) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier)) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments)) 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: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (identifier))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (decimal_integer_literal)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal))))) alternative: (block (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal))) consequence: (expression_statement (update_expression (identifier)))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)))) consequence: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))))))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (lambda_expression parameters: (inferred_parameters (identifier)) body: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (string_literal))))))))))))