Show only numbers

array = ( 415, 416)

NSString *arr_item = [NSString stringWithFormat:@"%@",array];

NSString *condensedPhoneno = [[arr_item componentsSeparatedByCharactersInSet:

                                       [[NSCharacterSet characterSetWithCharactersInString:@",0123456789"]

                                        invertedSet]]

                                      componentsJoinedByString:@""];

NSLog(@"result : %@",condensedPhoneno);

result: 415,416