static int nthElement ( int a , int b , int n ) {
  ArrayList < Integer > seq = new ArrayList < Integer > ( n * n + 1 ) ;
  for ( int i = 1 ;
  i <= n ;
  i ++ ) seq . add ( a * i ) ;
  Collections . sort ( seq ) ;
  for ( int i = 1 , k = n ;
  i <= n && k > 0 ;
  i ++ ) {
    if ( seq . indexOf ( b * i ) == - 1 ) {
      seq . add ( b * i ) ;
      Collections . sort ( seq ) ;
      k -- ;
    }
  }
  return seq . get ( n - 1 ) ;
}

static int nthElement ( int a , int b , int n ) { ArrayList < Integer > seq = new ArrayList < Integer > ( n * n + 1 ) ; for ( int i = 1 ; i <= n ; i ++ ) seq . add ( a * i ) ; Collections . sort ( seq ) ; for ( int i = 1 , k = n ; i <= n && k > 0 ; i ++ ) { if ( seq . indexOf ( b * i ) == - 1 ) { seq . add ( b * i ) ; Collections . sort ( seq ) ; k -- ; } } return seq . get ( n - 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)) (formal_parameter type: (integral_type) name: (identifier))) body: (block (local_variable_declaration type: (generic_type (type_identifier) (type_arguments (type_identifier))) declarator: (variable_declarator name: (identifier) value: (object_creation_expression type: (generic_type (type_identifier) (type_arguments (type_identifier))) arguments: (argument_list (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (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: (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (for_statement init: (local_variable_declaration type: (integral_type) declarator: (variable_declarator name: (identifier) value: (decimal_integer_literal)) declarator: (variable_declarator name: (identifier) value: (identifier))) condition: (binary_expression left: (binary_expression left: (identifier) right: (identifier)) right: (binary_expression left: (identifier) right: (decimal_integer_literal))) update: (update_expression (identifier)) body: (block (if_statement condition: (parenthesized_expression (binary_expression left: (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier)))) right: (unary_expression operand: (decimal_integer_literal)))) consequence: (block (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (identifier))))) (expression_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (identifier)))) (expression_statement (update_expression (identifier))))))) (return_statement (method_invocation object: (identifier) name: (identifier) arguments: (argument_list (binary_expression left: (identifier) right: (decimal_integer_literal)))))))