static long sumMultiples ( long n , long a , long b ) {
  n -- ;
  return sumAP ( n , a ) + sumAP ( n , b ) - sumAP ( n , a * b ) ;
}

static long sumMultiples ( long n , long a , long b ) { n -- ; return sumAP ( n , a ) + sumAP ( n , b ) - sumAP ( n , a * b ) ; }
(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)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (expression_statement (update_expression (identifier))) (return_statement (binary_expression left: (binary_expression left: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier)))) right: (method_invocation name: (identifier) arguments: (argument_list (identifier) (binary_expression left: (identifier) right: (identifier))))))))