Sleep Technique

Egor came to the Olympiad in Informatics. But the tasks turned out to be too difficult, so Egor chose to sleep instead of solving problems. But as we all know, everyone is very happy when someone is the first who solved the problem. There are $N$ problems in the contest. The $i$-th of them was solved at minute $L_i$ for the first time. This task will stop increasing the joy of everyone around at