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$)$;

$\}$

$\}$

$\}$

$\}$

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