public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int T = in . nextInt ( ) ;
  for ( int zz = 1 ;
  zz <= T ;
  zz ++ ) {
    String S = in . next ( ) ;
    long v = 0 ;
    long nv = 0 ;
    for ( int i = 0 ;
    i < S . length ( ) ;
    i ++ ) {
      int at = S . length ( ) - i - 1 ;
      if ( S . charAt ( i ) == '?' ) {
        nv |= 1L << at ;
      }
      else if ( S . charAt ( i ) == '1' ) {
        v |= 1L << at ;
      }
    }
    long ans = 0 ;
    for ( long c = nv ;
    ;
    c = ( c - 1 ) & nv ) {
      long test = v + c ;
      if ( issquare ( test ) ) {
        ans = test ;
        break ;
      }
      if ( c == 0 ) break ;
    }
    System . out . format ( "Case #%d: %s\n" , zz , Long . toBinaryString ( ans ) ) ;
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int T = in . nextInt ( ) ; for ( int zz = 1 ; zz <= T ; zz ++ ) { String S = in . next ( ) ; long v = 0 ; long nv = 0 ; for ( int i = 0 ; i < S . length ( ) ; i ++ ) { int at = S . length ( ) - i - 1 ; if ( S . charAt ( i ) == ' ? ' ) { nv |= 1L << at ; } else if ( S . charAt ( i ) == '1' ) { v |= 1L << at ; } } long ans = 0 ; for ( long c = nv ; ; c = ( c - 1 ) & nv ) { long test = v + c ; if ( issquare ( test ) ) { ans = test ; break ; } if ( c == 0 ) break ; } System . out . format ( " Case ▁ # % d : ▁ % s \n " , zz , Long . toBinaryString ( ans ) ) ; } }
(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) value: (decimal_integer_literal))) (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: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list))) update: (update_expression (identifier)) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (identifier)) right: (decimal_integer_literal)))) (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (identifier))))) alternative: (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))) right: (character_literal))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (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: (identifier))) update: (assignment_expression left: (identifier) right: (binary_expression left: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) right: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (identifier) right: (identifier)))) (if_statement condition: (parenthesized_expression (method_invocation name: (identifier) arguments: (argument_list (identifier)))) consequence: (block (expression_statement (assignment_expression left: (identifier) right: (identifier))) (break_statement))) (if_statement condition: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))) consequence: (break_statement)))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal) (identifier) (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier))))))))))