Given two strings, the first being a random string and the second being the same as the first, but with three added characters somewhere in the string (three same characters),
Write a function that returns the added character
### E.g
```
string1 = "hello"
string2 = "aaahello"
// => 'a'
```
The above is just an example; the characters could be anywhere in the string and string2 is actually **shuffled**.
### Another example
```
string1 = "abcde"
string2 = "2db2a2ec"
// => '2'
```
Note that the added character could also exist in the original string
```
string1 = "aabbcc"
string2 = "aacccbbcc"
// => 'c'
```
You can assume that string2 will aways be larger than string1, and there will always be three added characters in string2.
```if:c
Write the function `added_char()` that takes two strings and return the added character as described above.
```
```if:javascript
Write the function `addedChar()` that takes two strings and return the added character as described above.
```
added_char=lambda s1,s2:next(i for i in s2 if s1.count(i)!=s2.count(i))
added_char=lambda s1,s2:next(i for i in s2 if s1.count(i)!=s2.count(i))