#include<iostream> using namespace std; int main(){ int a,i[101],o[101],b=1,c; cin>>a; for(;b<=a;b++) cin>>i[a]; for(;b<=a;b++){ o[b]=i[b]-i[b+1]; if(o[b]<1) o[b*=-1]; } for(;b<=a;b++){ if(o[b]=b) c=1; else c=0; } if(c=1) printf("Jolly"); else printf("Not jolly"); return 0; }