#include<bits/stdc++.h>
using namespace std;
int main(){
long long n;
cin>>n;
cout<<(n*n)-n;
}
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Main.java:1: error: illegal character: '#'
#include<bits/stdc++.h>
^
Main.java:1: error: class, interface, or enum expected
#include<bits/stdc++.h>
^
Main.java:3: error: class, interface, or enum expected
int main(){
^
Main.java:5: error: class, interface, or enum expected
cin>>n;
^
Main.java:6: error: class, interface, or enum expected
cout<<(n*n)-n;
^
Main.java:7: error: class, interface, or enum expected
}
^
6 errors