import Utils   # For Closure class
import Collections      # For Heap (dense priority queue) class

procedure main()
   pq := Heap(, Closure("[]",Arg,1) )
   pq.add([3, "Clear drains"])
   pq.add([4, "Feed cat"])
   pq.add([5, "Make tea"])
   pq.add([1, "Solve RC tasks"])
   pq.add([2, "Tax return"])

   while task := pq.get() do write(task[1]," -> ",task[2])
end