Little kids, Jack and Evan like playing their favorite game Glass-and-Stone. Today they want to play something new and came across Twitter on their father's laptop.

They saw it for the first time but were already getting bored to see a bunch of sentences having at most 140 characters each. The only thing they liked to play with it is, closing and opening tweets.

There are N tweets on the page and each tweet can be opened by clicking on it, to see some statistics related to that tweet. Initially all the tweets are closed. Clicking on an open tweet closes it and clicking on a closed tweet opens it. There is also a button to close all the open tweets. Given a sequence of K clicks by Jack, Evan has to guess the total number of open tweets just after each click. Please help Evan in this game.

-----Input-----
First line contains two integers N K, the number of tweets (numbered 1 to N) and the number of clicks respectively (1 ≤ N, K ≤ 1000). Each of the following K lines has one of the following.

- CLICK X , where X is the tweet number (1 ≤ X ≤ N)
- CLOSEALL

-----Output-----
Output K lines, where the ith line should contain the number of open tweets just after the ith click.

-----Example-----
Input:
3 6
CLICK 1
CLICK 2
CLICK 3
CLICK 2
CLOSEALL
CLICK 1

Output:
1
2
3
2
0
1

Explanation:

Let open[x] = 1 if the xth tweet is open and 0 if its closed.

Initially open[1..3] = { 0 , 0 , 0 }. Here is the state of open[1..3] after each click and corresponding count of open tweets.

CLICK 1 : { 1, 0, 0 }, open count = 1

CLICK 2 : { 1, 1, 0 }, open count = 2

CLICK 3 : { 1, 1, 1 }, open count = 3

CLICK 2 : { 1, 0, 1 }, open count = 2

CLOSEALL : { 0, 0, 0 }, open count = 0

CLICK 1 : { 1, 0, 0 }, open count = 1

```python

USER_FILENAME = "<user_code>"
import sys, json, builtins
import math, heapq, bisect, itertools, functools, collections, statistics, fractions, decimal, operator, array, random, re, string, os, pathlib
try:
    import resource as _res
except Exception:
    _res = None
from collections import Counter, defaultdict, deque, OrderedDict
from functools import lru_cache, reduce
from itertools import accumulate, permutations, combinations, product
from math import gcd, ceil, floor, sqrt
from decimal import Decimal
try:
    from typing import *
except Exception:
    pass
try:
    sys.setrecursionlimit(1_000_000)
except Exception:
    pass
try:
    import site as _site
    try:
        _sys_sites = _site.getsitepackages() if hasattr(_site, "getsitepackages") else []
        for _p in _sys_sites:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
    try:
        _usp = _site.getusersitepackages()
        if isinstance(_usp, str):
            _usp = [_usp]
        for _p in _usp:
            if _p and _p not in sys.path:
                sys.path.append(_p)
    except Exception:
        pass
except Exception:
    pass

ns = {"__name__": "__main__"}
for _k, _v in list(globals().items()):
    if not _k.startswith("_"):
        ns[_k] = _v
_CODE = 'import sys\nopened = set()\nfirst = True\nfor line in sys.stdin:\n if first:\n  first = False\n  continue\n\n tok = line.split()\n if len(tok) == 1: opened = set()\n else:\n  x = int(tok[1])\n  if x in opened: opened.remove(x)\n  else: opened.add(x)\n \n print(len(opened))\n'
_co = compile(_CODE, USER_FILENAME, "exec")
exec(_co, ns, ns)

```

Measured memory_bytes: 14254