Transfer

function transferLiquid(start, target)
  local output2 = 0
  local output10 = 0
  while (not start == target) do
    output2 = output2 + 10^start
    output10 = output10 + 2^start
    start = start + 1
  end
  if (string.sub(""..output2,1,5) == "11111") then
    output10 = output10 -31
  end
  if (string.sub(""..output2,6,10) == "11111")then
    output10 = output10 -992
  end
  return output10
end

print(transferLiquid(read(), read()))