| using namespace std; | |
| int main() | |
| { | |
| int n,c,b[3010],a[3010],i; | |
| while(scanf("%d",&n)==1) | |
| { | |
| c=1; | |
| for(i=0;i<n;i++) | |
| { | |
| scanf("%d",&a[i]); | |
| } | |
| for(i=0;i<n-1;i++) | |
| { | |
| b[i]=abs(a[i+1]-a[i]); | |
| } | |
| sort(b,b+i); | |
| for(i=1;i<n;i++) | |
| { | |
| if(b[i]==b[i-1]) | |
| { | |
| c=0; | |
| break; | |
| } | |
| } | |
| if(c==0) | |
| printf("Not jolly\n"); | |
| else | |
| printf("Jolly\n"); | |
| } | |
| return 0; | |
| } | |