1=> Print with one element
2@map[7, test]: 1
3=> Print after zero:
4@map[7, test]: 0
5=> Print top 2:
6@map[4]: 9999
7@map[897123]: 9997
8=> Using printf:
99999 + 1
10=> Print all map:
11@map[4]: 9999
12@map[897123]: 9997
13@map[5]: 42
14@map[7, test]: 2
15=> Print after clear:
16