You receive the name of a city as a string, and you need to return a string that shows how many times each letter shows up in the string by using an asterisk (`*`).
For example:
```
"Chicago"  -->  "c:**,h:*,i:*,a:*,g:*,o:*"
```
As you can see, the letter `c` is shown only once, but with 2 asterisks.
The return string should include **only the letters** (not the dashes, spaces, apostrophes, etc). There should be no spaces in the output, and the different letters are separated by a comma (`,`) as seen in the example above.
Note that the return string must list the letters in order of their first appearence in the original string.
More examples:
```
"Bangkok"    -->  "b:*,a:*,n:*,g:*,k:**,o:*"
"Las Vegas"  -->  "l:*,a:**,s:**,v:*,e:*,g:*"
```
Have fun! ;)
import json
def get_strings(city):
    city = city.lower()
    city = city.replace(" ","")
    c = {}
    for i in city:
        if i in c:
            c[i] += "*"
        else:
            c[i] = "*"
    
    final = json.dumps(c)
    final = (final.replace("{","").replace("}","").replace(" ","").replace('"',""))
            
    return final
import json
def get_strings(city):
    city = city.lower()
    city = city.replace(" ","")
    c = {}
    for i in city:
        if i in c:
            c[i] += "*"
        else:
            c[i] = "*"
    
    final = json.dumps(c)
    final = (final.replace("{","").replace("}","").replace(" ","").replace('"',""))
            
    return final