static int countFactorialXNotY ( int x , int y ) {
  return ( firstFactorialDivisibleNumber ( y ) - firstFactorialDivisibleNumber ( x ) ) ;
}

static int countFactorialXNotY ( int x , int y ) { return ( firstFactorialDivisibleNumber ( y ) - firstFactorialDivisibleNumber ( x ) ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (return_statement (parenthesized_expression (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier))) right: (method_invocation name: (identifier) arguments: (argument_list (identifier))))))))