local ior = io.input()
local n, m = ior:read("*n", "*n")
local parent, gnum = {}, {}
for i = 1, n do parent[i], gnum[i] = i, 1 end

local function findroot(idx)
  while(parent[idx] ~= idx) do
    idx = parent[idx]
  end
  return idx
end

for i = 1, m do
  local a, b = ior:read("*n", "*n")
  local ar, br = findroot(a), findroot(b)
  parent[a], parent[b] = ar, br
  if(ar ~= br) then
    local an, bn = gnum[ar], gnum[br]
    local dst = true
    if(an < bn or (na == nb and br < ar)) then
      gnum[ar], gnum[br] = 0, gnum[ar] + gnum[br]
      parent[ar] = br
    else
      gnum[ar], gnum[br] = gnum[ar] + gnum[br], 0
      parent[br] = ar
    end
  end
end

for i = 1, n do
  print(findroot(i))
end