#include <iostream>
using namespace std;
int anno;
int main() {
cin>>anno;
if (anno%400 ==0) {cout<< "anno "<<anno<<" è bisestile"<<endl;}
else { if (anno%4==0)
{ if (anno%100 != 0) {cout<< "anno "<<anno<<" è bisestile"<<endl;}
else {cout<< "anno "<<anno<<" NON è bisestile"<<endl;}}
else {cout<< "anno "<<anno<<" NON è bisestile"<<endl;}}
return 0;
}
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