[CodeForces1000]A. Codehorses T-shirts

一道简单但是题面很难懂的水题，说了半天就是求不同型号的个数而不是需要修改几个字母，用 unordered_map 维护即可（不需要求前驱后继就用 unordered_map 会更快）。

Codehorses has just hosted the second Codehorses Cup. This year, the same as the previous one, organizers are giving T-shirts for the winners.

The valid sizes of T-shirts are either “M” or from0to3“X” followed by “S” or “L”. For example, sizes “M”, “XXS”, “L”, “XXXL” are valid and “XM”, “Z”, “XXXXL” are not.

There are𝑛winners to the cup for both the previous year and the current year. Ksenia has a list with the T-shirt sizes printed for the last year cup and is yet to send the new list to the printing office.

Organizers want to distribute the prizes as soon as possible, so now Ksenia is required not to write the whole list from the scratch but just make some changes to the list of the previous year. In one second she can choose arbitrary position in any word and replace its character with some uppercase Latin letter. Ksenia can’t remove or add letters in any of the words.

What is the minimal number of seconds Ksenia is required to spend to change the last year list to the current one?

The lists are unordered. That means, two lists are considered equal if and only if the number of occurrences of any string is the same in both lists.

Input

The first line contains one integer𝑛(1≤𝑛≤100) — the number of T-shirts.

The𝑖-th of the next𝑛lines contains𝑎𝑖— the size of the𝑖-th T-shirt of the list for the previous year.

The𝑖-th of the next𝑛lines contains𝑏𝑖— the size of the𝑖-th T-shirt of the list for the current year.

It is guaranteed that all the sizes in the input are valid. It is also guaranteed that Ksenia can produce list𝑏from the list𝑎.

Output

Print the minimal number of seconds Ksenia is required to spend to change the last year list to the current one. If the lists are already equal, print 0.

Examples

input

1
3
2
XS
3
XS
4
M
5
XL
6
S
7
XS

output

1
2

input

1
2
2
XXXL
3
XXL
4
XXL
5
XXXS

output

1
1

input

1
2
2
M
3
XS
4
XS
5
M

output

1
0

Note

In the first example Ksenia can replace “M” with “S” and “S” in one of the occurrences of “XS” with “L”.

In the second example Ksenia should replace “L” in “XXXL” with “S”.

In the third example lists are equal.

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#include <iostream>
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#include <cstdio>
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#include <cstring>
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#include <algorithm>
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#include <unordered_map>
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using namespace std;
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unordered_map<string,int>mp;
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int main(void)
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{
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  ios::sync_with_stdio(false);
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  cin.tie(0);cout.tie(0);
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  int i,n,ans=0;
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  cin>>n;
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  string str;
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  for(i=1;i<=n;++i)
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  {
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    cin>>str;
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    ++mp[str];
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  }
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  for(i=1;i<=n;++i)
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  {
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    cin>>str;
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    int& tmp=mp[str];
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    if(tmp>0)--tmp;
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    else ++ans;
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  }
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  printf("%d\n",ans);
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  return 0;
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}