function verify(day, task, case, expresult)
    taskfun = getfield(Main, Symbol("task", task - 1))
    filename = "day$(@sprintf "%02d" day)\\data\\case$(@sprintf "%02d" case).txt"

    println("Day $day – Task $task – Case $case")
    (result = open(taskfun, filename)) |> display
    @assert result == expresult
end