poj2575

#include

#include

using namespace std;

int main(){

int n;

while(cin>>n&&n>0){

bool b[3003];

memset(b,false,sizeof(b));

int i,a[3003];

cin>>a[0];

for(i=1;i

{

cin>>a[i];

if(a[i]-a[i-1]<0) b[a[i-1]-a[i]]=true;

else b[a[i]-a[i-1]]=true;

}

for(i=1;i<=n-1;i++)

 if(b[i]==false) break;

if(i==n) cout<<"Jolly"<<endl;

else cout<<"Not jolly"<<endl;

}

return 0;

}