#include<iostream> // cin\cout\endl #include<cstdio> //scanf()\printf() #include<cstring> // strcpy()\strcat()\strcmp()\strlen()\memset() #include<cmath> //sqrt()\pow()\abs()\ceil()\floor()\max()\min() using namespace std; int main(){ int y; cin>>y; if((y%4==0 && y%100!=0) || y%400==0) cout<<"leap year"<<endl; else cout<<"not leap year"<<endl; return 0; }