local n = io.read("*n", "*l")
local sum = n
local t = {}
for i = 1, n do t[i] = 0 end
local prv = math.floor(n * (n + 1) / 2)
for i = n - 1, 2, -1 do
  io.write("? 1 " .. i .. "\n")
  io.flush()
  local z = io.read("*n", "*l")
  t[i + 1] = prv - z
  prv = z
end
io.write("? 2 3\n")
io.flush()
local zz = io.read("*n", "*l")
t[2] = zz - t[3]
t[1] = prv - t[2]
io.write("! " .. table.concat(t, " ") .. "\n")
io.flush()