public static void main ( String [ ] args ) {
  Scanner sc = new Scanner ( System . in ) ;
  int t = sc . nextInt ( ) ;
  for ( int l = 0 ;
  l < t ;
  l ++ ) {
    String s = sc . next ( ) ;
    char arr [ ] = s . toCharArray ( ) ;
    Arrays . sort ( arr ) ;
    int count = 0 ;
    for ( int i = 0 ;
    i < arr . length ;
    i ++ ) {
      if ( i < arr . length - 1 ) {
        char ch = arr [ i ] ;
        int x = ch ;
        if ( arr [ i + 1 ] == ( char ) ( x + 1 ) ) count ++ ;
      }
    }
    if ( count == arr . length - 1 ) System . out . println ( "Yes" ) ;
    else System . out . println ( "No" ) ;
  }
}

public static void main ( String [ ] args ) { Scanner sc = new Scanner ( System . in ) ; int t = sc . nextInt ( ) ; for ( int l = 0 ; l < t ; l ++ ) { String s = sc . next ( ) ; char arr [ ] = s . toCharArray ( ) ; Arrays . sort ( arr ) ; int count = 0 ; for ( int i = 0 ; i < arr . length ; i ++ ) { if ( i < arr . length - 1 ) { char ch = arr [ i ] ; int x = ch ; if ( arr [ i + 1 ] == ( char ) ( x + 1 ) ) count ++ ; } } if ( count == arr . length - 1 ) System . out . println ( " Yes " ) ; else System . out . println ( " No " ) ; } }
(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)))) (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: (type_identifier) 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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (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: (field_access object: (identifier) field: (identifier))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (decimal_integer_literal)))) consequence: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (array_access array: (identifier) index: (identifier)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (identifier))) (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (cast_expression type: (integral_type) value: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))))) consequence: (expression_statement (update_expression (identifier)))))))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (binary_expression left: (field_access object: (identifier) field: (identifier)) right: (decimal_integer_literal)))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))) alternative: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))))))))