public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int T = in . nextInt ( ) ;
  for ( int zz = 1 ;
  zz <= T ;
  zz ++ ) {
    String start = in . next ( ) ;
    N = start . length ( ) ;
    int st = 0 ;
    for ( int i = 0 ;
    i < N ;
    i ++ ) {
      if ( start . charAt ( i ) == 'X' ) st |= 1 << i ;
    }
    DP = new double [ 1 << N ] ;
    Arrays . fill ( DP , - 1 ) ;
    DP [ ( 1 << N ) - 1 ] = 0 ;
    System . out . format ( "Case #%d: %.12f\n" , zz , compute ( st ) ) ;
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int T = in . nextInt ( ) ; for ( int zz = 1 ; zz <= T ; zz ++ ) { String start = in . next ( ) ; N = start . length ( ) ; int st = 0 ; for ( int i = 0 ; i < N ; i ++ ) { if ( start . charAt ( i ) == ' X ' ) st |= 1 << i ; } DP = new double [ 1 << N ] ; Arrays . fill ( DP , - 1 ) ; DP [ ( 1 << N ) - 1 ] = 0 ; System . out . format ( " Case ▁ # % d : ▁ % .12f \n " , zz , compute ( st ) ) ; } }
(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)))) (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) 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: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (identifier))))))) (expression_statement (assignment_expression left: (identifier) right: (array_creation_expression type: (floating_point_type) dimensions: (dimensions_expr (binary_expression left: (decimal_integer_literal) right: (identifier)))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier) (unary_expression operand: (decimal_integer_literal))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (parenthesized_expression (binary_expression left: (decimal_integer_literal) right: (identifier))) right: (decimal_integer_literal))) right: (decimal_integer_literal))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal) (identifier) (method_invocation name: (identifier) arguments: (argument_list (identifier))))))))))