Try the following exercises, individually or in pairs.
This program will generate a sequence of numbers by asking for a limit, and then printing 1, then that plus two, that plus 3, that plus 4, etc.
Enter limit: 50
1
2
4
7
11
16
22
29
37
46
This program will ask for a size, and then print the following shape.
Enter height: 8
o
o.o
o...o
o.....o
o.......o
o.........o
o...........o
ooooooooooooooo