public static void main ( String [ ] args ) {
  Scanner in = new Scanner ( System . in ) ;
  int n = Integer . parseInt ( in . next ( ) ) ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    boolean is = false ;
    int m = Integer . parseInt ( in . next ( ) ) ;
    int [ ] k = new int [ m ] ;
    int [ ] h = new int [ m ] ;
    int min = - 1 ;
    for ( int j = 0 ;
    j < m ;
    j ++ ) {
      h [ j ] = 0 ;
      k [ j ] = Integer . parseInt ( in . next ( ) ) - 1 ;
    }
    System . out . print ( "Case #" + ( i + 1 ) + ": " ) ;
    int fullcounter = 0 ;
    ArrayList < Integer > q = new ArrayList < > ( ) ;
    for ( int j = 0 ;
    j < m ;
    j ++ ) {
      int p = j ;
      for ( int z = 0 ;
      z < m + 2 ;
      z ++ ) {
        if ( k [ k [ p ] ] == p ) {
          if ( z > h [ p ] || ! q . contains ( p ) ) {
            fullcounter -= h [ p ] ;
            fullcounter += z ;
            if ( ! q . contains ( p ) ) {
              q . add ( p ) ;
              fullcounter ++ ;
            }
            h [ p ] = z ;
          }
          if ( min < fullcounter ) {
            min = fullcounter ;
          }
          z = m + 1 ;
          continue ;
        }
        p = k [ p ] ;
        if ( z > 0 && p == k [ j ] ) {
          if ( min < z ) {
            min = z ;
          }
          z = m + 1 ;
        }
      }
    }
    System . out . println ( min ) ;
  }
}

public static void main ( String [ ] args ) { Scanner in = new Scanner ( System . in ) ; int n = Integer . parseInt ( in . next ( ) ) ; for ( int i = 0 ; i < n ; i ++ ) { boolean is = false ; int m = Integer . parseInt ( in . next ( ) ) ; int [ ] k = new int [ m ] ; int [ ] h = new int [ m ] ; int min = - 1 ; for ( int j = 0 ; j < m ; j ++ ) { h [ j ] = 0 ; k [ j ] = Integer . parseInt ( in . next ( ) ) - 1 ; } System . out . print ( " Case ▁ # " + ( i + 1 ) + " : ▁ " ) ; int fullcounter = 0 ; ArrayList < Integer > q = new ArrayList < > ( ) ; for ( int j = 0 ; j < m ; j ++ ) { int p = j ; for ( int z = 0 ; z < m + 2 ; z ++ ) { if ( k [ k [ p ] ] == p ) { if ( z > h [ p ] || ! q . contains ( p ) ) { fullcounter -= h [ p ] ; fullcounter += z ; if ( ! q . contains ( p ) ) { q . add ( p ) ; fullcounter ++ ; } h [ p ] = z ; } if ( min < fullcounter ) { min = fullcounter ; } z = m + 1 ; continue ; } p = k [ p ] ; if ( z > 0 && p == k [ j ] ) { if ( min < z ) { min = z ; } z = m + 1 ; } } } System . out . println ( min ) ; } }
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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 (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (decimal_integer_literal))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)))) right: (decimal_integer_literal)))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (string_literal) right: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal)))) right: (string_literal))))) (local_variable_declaration type: (integral_type) 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)))) (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: (integral_type) declarator: (variable_declarator name: (identifier) value: (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: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (array_access array: (identifier) index: (identifier))) right: (identifier))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (binary_expression left: (identifier) right: (array_access array: (identifier) index: (identifier))) right: (unary_expression operand: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))))) consequence: (block (expression_statement (assignment_expression 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(identifier))))))))