local ffi = require("ffi")
local C = ffi.C
ffi.cdef[[
long long atoll(const char*);
]]

local function lltonumber(str)
  return C.atoll(str)
end

local mod = 998244353

local n = io.read("*n", "*l")
local str = io.read()
local t = {}
for w in str:gmatch("%d+") do
  table.insert(t, lltonumber(w))
end
table.sort(t)
local ans = 0LL
for i = 1, n do
  ans = (ans * 10LL + t[i]) % mod
end
ans = tostring(ans):gsub("LL", "")
print(ans)