static int sumModArr ( int arr [ ] , int n ) {
  for ( int i = 0 ;
  i < n - 1 ;
  i ++ ) {
    int subSum = 0 ;
    for ( int j = i + 1 ;
    j < n ;
    j ++ ) {
      subSum += arr [ j ] ;
    }
    arr [ i ] -= subSum ;
  }
  return sumArr ( arr , n ) ;
}

static int sumModArr ( int arr [ ] , int n ) { for ( int i = 0 ; i < n - 1 ; i ++ ) { int subSum = 0 ; for ( int j = i + 1 ; j < n ; j ++ ) { subSum += arr [ j ] ; } arr [ i ] -= subSum ; } return sumArr ( arr , n ) ; }
(method_declaration (modifiers) type: (integral_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) condition: (binary_expression left: (identifier) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (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: (binary_expression left: (identifier) right: (decimal_integer_literal)))) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (expression_statement (assignment_expression left: (identifier) right: (array_access array: (identifier) index: (identifier)))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))))) (return_statement (method_invocation name: (identifier) arguments: (argument_list (identifier) (identifier))))))