#include
#include<bits/stdc++.h>
using namespace std;
int main () {
int q;
cin>>q;
stackst;
while(q–)
{
int a;
cin>>a;
if(a==‘2’)
{
int b;
cin>>b;
st.push(b);
}
else if(a==‘1’)
{
if(!st.empty())
{
int c=st.top();
st.pop();
cout<<c<<endl;
}
else{
cout<<“No code”<<endl;
}
}
}
return 0;
}
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