Datasets:
| <Analysis> | |
| Starting state: there are 4 stacks: | |
| - Stack 1: blue block (alone) | |
| - Stack 2: red block (alone) | |
| - Stack 3: orange block (alone) | |
| - Stack 4: green block, purple block, from bottom to top | |
| Ending state: there are 1 stacks: | |
| - Stack 1: red block, green block, blue block, orange block, purple block, from bottom to top | |