#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<ctime> #include<cstdlib> #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int year; cin>>year; if(year%4==0&&year%100!=0) cout<<"leap year"<<endl; else cout<<"not leap year"<<endl; }