[[
    # 1 -> 2 -> 3 -> 4 -> 5 -> 6
    # 1. Part I Left
    # [1101, 1102, 1103],

    # 2. Part II Left
    [2101, 2102, 2103, 2107, 2108, 2109, 2113, 2114, 2115],

    # 3. Part III Left
    [3101, 3102, 3103, 3107, 3108, 3109, 3113, 3114, 3115],

    # 4. Part I Right
    # [1201, 1202, 1203],

    # 5. Part II Right
    [2201, 2202, 2203, 2207, 2208, 2209, 2213, 2214, 2215,],

    # 6. Part III Right
    [3201, 3202, 3203, 3207, 3208, 3209, 3213, 3214, 3215]
]]