#include <bits/stdc++.h>
using namespace std;
int main() {
int n,s=0,r;
while(cin>>n)
{
int arr[n];
s=0;
for(int i=0;i<n;i++)
{
cin>>arr[i];
r=abs(arr[i]-n);
if(r>n)
{
s=1;
}
}
if(s==1)
{
cout<<"Not jolly"<<endl;
}
else
{
cout<<"Jolly"<<endl;
}
}
return 0;
}
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