public static void main ( String [ ] args ) {
  Vector < Integer > differences = new Vector < Integer > ( ) ;
  differences . add ( 2 ) ;
  differences . add ( - 3 ) ;
  differences . add ( 2 ) ;
  int n = differences . size ( ) + 1 ;
  findPerm ( n , differences ) ;
}

public static void main ( String [ ] args ) { Vector < Integer > differences = new Vector < Integer > ( ) ; differences . add ( 2 ) ; differences . add ( - 3 ) ; differences . add ( 2 ) ; int n = differences . size ( ) + 1 ; findPerm ( n , differences ) ; }
(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: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments (type_identifier))) arguments: (argument_list)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (unary_expression operand: (decimal_integer_literal))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal)))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list)) right: (decimal_integer_literal)))) (expression_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))))