Paper Assignments 18, 19
Due date: 5/2

Paper 18: Akitaya_2021_2105.07997
    - Compacting Squares: Input-Sensitive In-Place Reconfiguration of Sliding Squares.
    - https://arxiv.org/abs/2105.07997
    - Read Sections 1, 2, 5
    - Group: G2

Paper 19: Balanza-Martinez_2020_SODA
    - Hierarchical Shape Construction and Complexity for Slidable Polyominoes under Uniform External Forces.
    - Read Sections 1, 2, 5, 6
    - Group: G7