blocks/task3/example/level4/text_input/3.txt

(A)
- Stack with orange block, blue block, from bottom to top
- Stack with yellow block, purple block, from bottom to top

(B)
- Stack with purple block
- Stack with yellow block, blue block, orange block, from bottom to top

(C)
- Stack with orange block
- Stack with green block
- Stack with blue block
- Stack with purple block
- Stack with yellow block

(D)
- Stack with orange block, blue block, purple block, green block, from bottom to top