The output of the following code snippet is:

using System;

using System. Collections;

namespace Solution

$\{$

class Solution

$$

static:void Main$($string$[]$ args$)$

$\{.$

Stack st $=$ new Stack $()$;

st$.$Push$(1)$ ;

st$.$Push $(1\mathrm{.}1)$;

st$.$Push $(\text{'}z\text{'})$ ;

st$.$Push$("$Hello$")$;

foreach $($var e in st$)$

$$

Console.Writeline$($e$)$;

$\}$

$\}$

$\}$

$\}$