Search specified option present in list box

WebDriver driver=new FirefoxDriver()'

driver.get("https://www.facebook.com/");

WebElement Day=driver.findElement(By.id("day"));

Select sel=new Select(Day);

List<WebElement>list=sel.getOption();

System.out.println(list);

for(int i=0;i<list.size();i++){

String s=list.get(i).getText();

if(s.contains("16")){

System.out.print("found");

s.click();

break;//includes duplicate option 

}}