#include<iostream> using namespace std; int main(){ int a; cin>>a; if(a % 400 ==0){ cout<<"闰年"<<endl; } if(a %4 ==0){ cout<<"闰年"<<endl; } if(a % 100 !=0){ cout<<"闰年"<<endl; } else{ cout<<"不是闰年"<<endl; } return 0; }