public static int fortunateNumber ( int n ) {
  int p = primorial ( n ) ;
  return findNextPrime ( p ) - p ;
}

public static int fortunateNumber ( int n ) { int p = primorial ( n ) ; return findNextPrime ( p ) - p ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier))))) (return_statement (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier))) right: (identifier)))))