static int count ( int N ) {
  int sum = 0 ;
  for ( int i = 1 ;
  i <= N ;
  i ++ ) {
    sum += 7 * Math . pow ( 8 , i - 1 ) ;
  }
  return sum ;
}

static int count ( int N ) { int sum = 0 ; for ( int i = 1 ; i <= N ; i ++ ) { sum += 7 * Math . pow ( 8 , i - 1 ) ; } return sum ; }
(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: (decimal_integer_literal))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (binary_expression left: (decimal_integer_literal) right: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (decimal_integer_literal) (binary_expression left: (identifier) right: (decimal_integer_literal))))))))) (return_statement (identifier))))