#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%400==0||y%4==0&&y%100!=0) { cout<<"leap year"; } else { cout<<"not leap year"; } return 0; }