static void printDuplicates ( int arr [ ] , int n ) {
  int i ;
  int fl = 0 ;
  for ( i = 0 ;
  i < n ;
  i ++ ) {
    if ( arr [ arr [ i ] % n ] >= n ) {
      if ( arr [ arr [ i ] % n ] < 2 * n ) {
        System . out . print ( arr [ i ] % n + " " ) ;
        fl = 1 ;
      }
    }
    arr [ arr [ i ] % n ] += n ;
  }
  if ( ! ( fl > 0 ) ) System . out . println ( "-1" ) ;
}

static void printDuplicates ( int arr [ ] , int n ) { int i ; int fl = 0 ; for ( i = 0 ; i < n ; i ++ ) { if ( arr [ arr [ i ] % n ] >= n ) { if ( arr [ arr [ i ] % n ] < 2 * n ) { System . out . print ( arr [ i ] % n + " ▁ " ) ; fl = 1 ; } } arr [ arr [ i ] % n ] += n ; } if ( ! ( fl > 0 ) ) System . out . println ( " - 1" ) ; }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (integral_type) name: (identifier) dimensions: (dimensions)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier))) (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (for_statement init: (assignment_expression left: (identifier) right: (decimal_integer_literal)) condition: (binary_expression left: (identifier) right: (identifier)) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) right: (identifier))) consequence: (block (if_statement condition: (parenthesized_expression (binary_expression left: (array_access array: (identifier) index: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) right: (binary_expression left: (decimal_integer_literal) right: (identifier)))) consequence: (block (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier)) right: (string_literal))))) (expression_statement (assignment_expression left: (identifier) right: (decimal_integer_literal))))))) (expression_statement (assignment_expression left: (array_access array: (identifier) index: (binary_expression left: (array_access array: (identifier) index: (identifier)) right: (identifier))) right: (identifier))))) (if_statement condition: (parenthesized_expression (unary_expression operand: (parenthesized_expression (binary_expression left: (identifier) right: (decimal_integer_literal))))) consequence: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (string_literal)))))))