public static void main ( String [ ] args ) {
  int n = 16 ;
  List < List < Integer >> resultant = factComb ( n ) ;
  for ( List < Integer > i : resultant ) {
    for ( int j : i ) System . out . print ( j + " " ) ;
    System . out . println ( ) ;
  }
}

public static void main ( String [ ] args ) { int n = 16 ; List < List < Integer > > resultant = factComb ( n ) ; for ( List < Integer > i : resultant ) { for ( int j : i ) System . out . print ( j + " ▁ " ) ; System . out . println ( ) ; } }
(method_declaration (modifiers) type: (void_type) name: (identifier) parameters: (formal_parameters (formal_parameter type: (array_type element: (type_identifier) dimensions: (dimensions)) name: (identifier))) body: (block (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal))) (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (generic_type (type_identifier) (type_arguments (type_identifier))))) declarator: (variable_declarator name: (identifier) value: (method_invocation name: (identifier) arguments: (argument_list (identifier))))) (enhanced_for_statement type: (generic_type (type_identifier) (type_arguments (type_identifier))) name: (identifier) value: (identifier) body: (block (enhanced_for_statement type: (integral_type) name: (identifier) value: (identifier) body: (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (string_literal)))))) (expression_statement (method_invocation object: (field_access object: (identifier) field: (identifier)) name: (identifier) arguments: (argument_list)))))))