static int sumPrimeRange ( int L , int R ) {
  buildPrefix ( ) ;
  return prefix [ R ] - prefix [ L - 1 ] ;
}

static int sumPrimeRange ( int L , int R ) { buildPrefix ( ) ; return prefix [ R ] - prefix [ L - 1 ] ; }
(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 (expression_statement (method_invocation name: (identifier) arguments: (argument_list))) (return_statement (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (array_access array: (identifier) index: (binary_expression left: (identifier) right: (decimal_integer_literal)))))))