import macros
proc getchar_unlocked():char {. importc:"getchar_unlocked",header: "<stdio.h>" ,discardable.}
proc scan(): int =
  while true:
    let k = getchar_unlocked()
    if k < '0': return
    result = 10 * result + k.ord - '0'.ord

proc putchar_unlocked(c:char){. importc:"putchar_unlocked",header: "<stdio.h>" .}
proc printInt(a0:int32) =
  # if a0 < 0 : putchar_unlocked('-') # マイナスにも対応したければこれで可能
  # var a0 = a0.abs
  template div10(a:int32) : int32 = cast[int32]((0x1999999A * cast[int64](a)) shr 32)
  template put(n:int32) = putchar_unlocked("0123456789"[n])
  proc getPrintIntNimCode(n,maxA:static[int32]):string =
    result = "if a0 < " & $maxA & ":\n"
    for i in 1..n: result &= "  let a" & $i & " = a" & $(i-1) & ".div10\n"
    result &= "  put(a" & $n & ")\n"
    for i in n.countdown(1): result &= "  put(a" & $(i-1) & "-a" & $i & "*10)\n"
    result &= "  return"
  macro eval(s:static[string]): auto = parseStmt(s)
  eval(getPrintIntNimCode(0,10))
  eval(getPrintIntNimCode(1,100))
  eval(getPrintIntNimCode(2,1000))
  eval(getPrintIntNimCode(3,10000))
  eval(getPrintIntNimCode(4,100000))
  eval(getPrintIntNimCode(5,1000000))
  eval(getPrintIntNimCode(6,10000000))
  eval(getPrintIntNimCode(7,100000000))
  eval(getPrintIntNimCode(8,1000000000))
template printInt(n:int,c:char) =
  printInt(n.int32)
  putchar_unlocked(c)

let n = scan()
# 1 2 3 4 5 6 ... [3n+1]
#   2 3 4 5 6 ... (3n+1) [3n+2] (3n+3)
# 1 2   4 5 6 ... (3n-2) (3n-1) [3n] (3n+1)
let nm = n mod 3
if n == 3:
  quit "1 3 6",0
if nm == 1:
  for i in 1..n:
    printInt(i,' ')
  putchar_unlocked('\n')
elif nm == 2:
  for i in 2..n+1:
    printInt(i,' ')
  putchar_unlocked('\n')
else:
  putchar_unlocked('1')
  putchar_unlocked(' ')
  putchar_unlocked('2')
  putchar_unlocked(' ')
  for i in 4..n+1:
    printInt(i,' ')
  putchar_unlocked('\n')