BinOps(
    [
        (
            |L 0-0, C 0-2| Num(
                "31",
            ),
            |L 0-0, C 2-3| Star,
        ),
        (
            |L 0-0, C 3-5| Num(
                "42",
            ),
            |L 0-0, C 5-6| Plus,
        ),
    ],
    |L 0-0, C 6-9| Num(
        "534",
    ),
)