public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int n = sc . nextInt ( ) ;
  int arr [ ] = new int [ n ] ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    arr [ i ] = sc . nextInt ( ) ;
  }
  int sum = 0 ;
  int c = 0 ;
  String s = "" ;
  int checkSingle = - 1 ;
  int checkDouble = - 1 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    if ( arr [ i ] == 0 || arr [ i ] == 100 ) {
      c ++ ;
      s = s + arr [ i ] + " " ;
    }
    else if ( arr [ i ] % 10 == 0 && checkDouble == - 1 ) {
      c ++ ;
      checkDouble = 0 ;
      s = s + arr [ i ] + " " ;
    }
    else if ( arr [ i ] / 10 == 0 && checkSingle == - 1 ) {
      c ++ ;
      checkSingle = 0 ;
      s = s + arr [ i ] + " " ;
    }
  }
  if ( checkDouble == - 1 && checkSingle == - 1 ) {
    for ( int i = 0 ;
    i < n ;
    i ++ ) {
      if ( arr [ i ] != 0 && arr [ i ] != 100 ) {
        c ++ ;
        s = s + arr [ i ] + " " ;
        break ;
      }
    }
  }
  if ( c == 0 ) {
    System . out . println ( 1 ) ;
    System . out . println ( arr [ 0 ] ) ;
    return ;
  }
  System . out . println ( c ) ;
  System . out . println ( s ) ;
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int n = sc . nextInt ( ) ; int arr [ ] = new int [ n ] ; for ( int i = 0 ; i < n ; i ++ ) { arr [ i ] = sc . nextInt ( ) ; } int sum = 0 ; int c = 0 ; String s = " " ; int checkSingle = - 1 ; int checkDouble = - 1 ; for ( int i = 0 ; i < n ; i ++ ) { if ( arr [ i ] == 0 || arr [ i ] == 100 ) { c ++ ; s = s + arr [ i ] + " ▁ " ; } else if ( arr [ i ] % 10 == 0 && checkDouble == - 1 ) { c ++ ; checkDouble = 0 ; s = s + arr [ i ] + " ▁ " ; } else if ( arr [ i ] / 10 == 0 && checkSingle == - 1 ) { c ++ ; checkSingle = 0 ; s = s + arr [ i ] + " ▁ " ; } } if ( checkDouble == - 1 && checkSingle == - 1 ) { for ( int i = 0 ; i < n ; i ++ ) { if ( arr [ i ] != 0 && arr [ i ] != 100 ) { c ++ ; s = s + arr [ i ] + " ▁ " ; break ; } } } if ( c == 0 ) { System . out . println ( 1 ) ; System . out . println ( arr [ 0 ] ) ; return ; } System . out . println ( c ) ; System . out . println ( s ) ; }
(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 (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)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) dimensions: (dimensions) value: (array_creation_expression type: (integral_type) dimensions: (dimensions_expr (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 (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (type_identifier) declarator: (variable_declarator name: (identifier) value: (string_literal))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (unary_expression operand: (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (unary_expression operand: (decimal_integer_literal)))) (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 (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))) right: (string_literal))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal))))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))) right: (string_literal))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)) right: (decimal_integer_literal)) right: (binary_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal))))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))) right: (string_literal)))))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal))) right: (binary_expression left: (identifier) right: (unary_expression operand: (decimal_integer_literal))))) consequence: (block (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 (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)) right: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal)))) consequence: (block (expression_statement (update_expression (identifier))) (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))) right: (string_literal)))) (break_statement))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (decimal_integer_literal)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (array_access array: (identifier) index: (decimal_integer_literal))))) (return_statement))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (identifier))))))