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! ;)

Difficulty: EASY
Starter code: def get_strings(city):
	

Solutions:
from collections import Counter

def get_strings(city):
	return ','.join((f"{char}:{'*' * count}" for (char, count) in Counter(city.replace(' ', '').lower()).items()))


def get_strings(city):
	city = city.lower()
	result = ''
	for i in city:
		if i in result:
			pass
		elif i == ' ':
			pass
		else:
			result += i + ':' + '*' * city.count(i) + ','
	return result[:-1]


def get_strings(city):
	city = city.lower().replace(' ', '')
	return ','.join(sorted([f"{i}:{city.count(i) * '*'}" for i in set(city)], key=lambda x: city.index(x[0])))


from collections import Counter

def get_strings(city):
	c = Counter(filter(str.isalpha, city.lower()))
	return ','.join((f"{k}:{'*' * v}" for (k, v) in c.items()))


def get_strings(s):
	return ','.join((f"{i}:{'*' * s.lower().count(i)}" for i in dict.fromkeys(s.replace(' ', '').lower())))


def get_strings(city):
	city = city.lower().replace(' ', '')
	return ','.join((f'{c}:' + '*' * city.count(c) for c in dict.fromkeys(city)))


from collections import Counter

def get_strings(city):
	lst = []
	for (key, value) in dict(Counter(city.replace(' ', '').lower())).items():
		lst.append(key + ':' + '*' * value)
	return ','.join(lst)


import re

def get_strings(city):
	cache = {}
	r_string = ''
	counter = 0
	city = re.sub(' ', '', city)
	for letter in city.lower():
		if letter not in cache:
			cache[letter] = 0
			cache[letter] += 1
		else:
			cache[letter] += 1
	for (k, v) in cache.items():
		if counter < len(cache) - 1:
			r_string += k + ':' + '*' * v + ','
			counter += 1
		elif counter < len(cache):
			r_string += k + ':' + '*' * v
	return r_string


def get_strings(city):
	city = list(city.lower())
	con = {}
	for char in city:
		if char == ' ':
			pass
		else:
			con[char] = city.count(char) * '*'
	first = True
	result = ''
	for item in con.keys():
		if first == True:
			first = False
			result += item + ':' + con.get(item)
		else:
			result += ',' + item + ':' + con.get(item)
	return result


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


def get_strings(city):
	index = 0
	string = ''
	city = city.lower()
	city = city.replace(' ', '')
	for i in city:
		asterisks = city.count(i)
		if i in string:
			index = index + 1
		else:
			if index == len(city) - 1 and i not in string:
				string += i.lower() + ':' + '*' * asterisks
			if index != len(city) - 1:
				string += i.lower() + ':' + '*' * asterisks + ','
				index = index + 1
	if string[-1] == ',':
		lst = list(string)
		lst[-1] = ''
		new = ''.join(lst)
		return new
	return string


from collections import Counter

def get_strings(city):
	return ','.join((f"{e}:{'*' * c}" for (e, c) in Counter(city.lower()).items() if e.isalpha()))


def get_strings(city):
	(s, city) = (str(), ''.join(city.lower().split()))
	for i in city:
		if i not in s:
			s += i + ':' + '*' * city.count(i) + ','
	return s[:-1]


from collections import Counter

def get_strings(word):
	return ','.join((f"{letter}:{'*' * count}" for (letter, count) in Counter(word.lower()).items() if letter.isalpha()))


from collections import Counter

def get_strings(city):
	alphabet = 'abcdefghijklmnopqrstuvwxyz'
	city_str = ''
	city_dict = Counter(city.lower())
	for key in city_dict:
		if key in alphabet:
			city_str += key + ':' + '*' * city_dict[key] + ','
	return city_str[:-1]


def get_strings(city):
	ciu = {}
	for letra in city.lower().replace(' ', ''):
		if letra not in ciu:
			ciu[letra] = '*'
		else:
			ciu[letra] += '*'
	array = []
	for clave in ciu:
		array.append('{}:{}'.format(clave, ciu[clave]))
	return ','.join(array).replace(' ', '')


from collections import Counter

def get_strings(city):
	return ','.join([k.lower() + ':' + '*' * v for (k, v) in Counter(city.lower()).items() if k.isalpha()])


from collections import Counter

def get_strings(city):
	return ','.join((f"{letter}:{'*' * count}" for (letter, count) in list(Counter(city.lower()).items()) if letter != ' '))


def get_strings(city):
	counts = {}
	for c in city.lower():
		if c.isalpha():
			counts[c] = counts[c] + '*' if c in counts else '*'
	return ','.join([f'{c}:{a}' for (c, a) in counts.items()])


get_strings = lambda s: ','.join((k + ':' + s.lower().count(k) * '*' for k in dict.fromkeys(s.lower().replace(' ', ''))))


def get_strings(city):
	city = city.lower()
	city = list(city)
	dicti = {}
	strres = ''
	for i in city:
		if ord(i) > 96 and ord(i) < 123:
			if i in dicti:
				dicti[i] += 1
			else:
				dicti[i] = 1
	for i in dicti:
		strres = strres + i + ':' + '*' * dicti[i] + ','
	strres = strres[:-1]
	return strres


def get_strings(city):
	return ','.join([i + ':' + '*' * city.lower().count(i) for i in dict.fromkeys(city.lower().replace(' ', ''))])


def get_strings(stra):
	string = stra.lower()
	dc = {}
	for i in string:
		if i == ' ':
			continue
		dc[i] = '*' * string.count(i)
	return ','.join([k + ':' + v for (k, v) in list(dc.items())])


def get_strings(city):
	res = {}
	for i in city.lower().replace(' ', ''):
		res[i] = res.get(i, '') + '*'
	return ','.join([f'{k}:{v}' for (k, v) in res.items()])


from collections import OrderedDict

def get_strings(city):
	values = [i for i in city.replace(' ', '').lower()]
	v2 = [j + ':' + '*' * values.count(j) for j in values]
	return ','.join(list(OrderedDict.fromkeys(v2)))


def get_strings(city):
	city = city.lower()
	city = city.replace(' ', '')
	cit_str = ''
	usedletters = []
	for letter in city:
		if letter in usedletters:
			pass
		else:
			cit_str += letter + ':'
			l_num = city.count(letter)
			for num in range(0, l_num):
				cit_str += '*'
			cit_str += ','
			usedletters.append(letter)
	return cit_str[:-1]


get_strings = lambda city: ''.join(list(dict.fromkeys(['{}:{},'.format(i, '*' * city.lower().count(i)) for i in city.lower() if i != ' ']))).rstrip(',')


from collections import Counter

def get_strings(city):
	d = dict(Counter(city.lower()))
	ret = [f"{k}:{v * '*'}" for (k, v) in d.items() if k.isalpha()]
	return ','.join(ret)


def get_strings(city):
	city = city.lower().replace(' ', '')
	dict = {}
	for l in city:
		if l in dict:
			dict[l] += '*'
		else:
			dict[l] = '*'
	result = ''
	for i in dict:
		result += i + ':' + dict[i] + ','
	return result[:-1]


def get_strings(city):
	memory = {}
	for char in city:
		if char.isspace():
			continue
		char = char.lower()
		if char not in memory.keys():
			memory[char] = '*'
		else:
			memory[char] += '*'
	return_str = ''
	for (k, v) in memory.items():
		return_str += k + ':' + v + ','
	return return_str[:-1]


def get_strings(city):
	city = city.lower()
	storage = []
	hold = ''
	for i in city:
		if i.isalpha() == True and str(i) not in hold:
			storage.append(str(i) + ':' + city.count(i) * '*')
			hold += str(i)
	return ','.join(storage)


from collections import OrderedDict

def get_strings(city):
	return ','.join((f"{letter}:{'*' * city.lower().count(letter)}" for letter in {letter: None for letter in city.lower() if letter.isalpha()}))


def get_strings(inputString):
	checkDict = {'letter': [], 'count': []}
	charArray = list(inputString.lower())
	for i in charArray:
		if i in checkDict['letter']:
			k = checkDict['letter'].index(i)
			checkDict['count'][k] = checkDict['count'][k] + '*'
		elif i.isalpha():
			checkDict['letter'].append(i)
			checkDict['count'].append('*')
	outputString = ''
	for i in checkDict['letter']:
		indexLetter = checkDict['letter'].index(i)
		outputString = outputString + i + ':' + checkDict['count'][indexLetter] + ','
	return outputString[:-1]


def get_strings(city):
	myMap = {}
	for i in range(len(city)):
		letter = city[i].lower()
		if letter not in myMap:
			myMap[letter] = 1
		else:
			myMap[letter] = myMap.get(letter) + 1
	myMap.pop(' ', None)
	result = ''
	for item in myMap:
		result = result + item + ':'
		for i in range(myMap.get(item)):
			result += '*'
		result += ','
	return result[:-1]


def get_strings(city):
	letters = {}
	for letter in city.lower():
		if letter in letters:
			value = letters[letter]
			value += 1
			letters.update({letter: value})
		else:
			letters.update({letter: 1})
	result = ''
	for letter in city.lower().replace(' ', ''):
		if letter not in result:
			result += letter + ':' + '*' * letters[letter] + ','
	return result[:-1]


from collections import Counter

def get_strings(city):
	counting = Counter(city.lower())
	dict(counting)
	output = ''
	for (key, value) in counting.items():
		if len(key.strip()) > 0:
			output += key + ':' + '*' * value + ','
	output = output[:-1]
	print(output)
	return output


def get_strings(city):
	result = ''
	d = {}
	for letter in city.lower():
		d[letter] = d.get(letter, 0) + 1
	for letter in city.lower().replace(' ', ''):
		if not letter in result:
			result += letter + ':' + '*' * d[letter] + ','
	return result[:-1]


def get_strings(city):
	new = city.lower().replace(' ', '')
	list = []
	for x in new:
		c = new.count(x)
		y = x + ':' + '*' * c
		if y not in list:
			list.append(y)
		s = ','.join(list)
	return s


def get_strings(city):
	city_alpha = ''.join((x.lower() for x in city if x.isalpha()))
	(seen_cnt, order) = ({}, '')
	for x in city_alpha:
		if x not in seen_cnt:
			seen_cnt[x] = 1
			order += x
		else:
			seen_cnt[x] += 1
	output = ''
	for x in order:
		output += ',' + x + ':' + '*' * seen_cnt[x]
	return output[1:]


def get_strings(city):
	res = {}
	for x in city.lower():
		if x.isalpha():
			res[x] = city.lower().count(x)
	return ','.join(['%s:%s' % (x, '*' * res[x]) for x in res])


def get_strings(city):
	city = city.replace(' ', '').lower()
	city_string = ''
	for i in city:
		if i in city_string:
			pass
		else:
			city_string += i + ':' + '*' * city.count(i) + ','
	result = city_string[:-1]
	return result


from collections import Counter

def get_strings(city):
	return ','.join([f"{char}:{'*' * char_count}" for (char, char_count) in list(dict(Counter(city.lower())).items()) if char != ' '])


def get_strings(city):
	city = city.lower().replace(' ', '')
	arr = []
	for el in city:
		if el not in arr:
			arr.append(el)
	return ','.join([f"{el}:{city.count(el) * '*'}" for el in arr])


def get_strings(city):
	result = ''
	city = city.lower().replace(' ', '')
	for i in city:
		if i not in result:
			result += f"{i}:{'*' * city.count(i)},"
	return result[:-1]


def get_strings(city):
	city = city.lower().strip()
	letters_count = {}

	def star_print(int):
		star_string = ''
		for i in range(int):
			star_string = star_string + '*'
		return star_string
	for letter in city:
		if letter.isalpha():
			if letter in letters_count:
				letters_count[letter] = letters_count[letter] + 1
			else:
				letters_count[letter] = 1
	ans_string = ''
	for items in letters_count:
		temp_string = str(items) + ':' + star_print(letters_count[items]) + ','
		ans_string = ans_string + temp_string
	ans_string = ans_string[0:-1]
	return ans_string


def c(lista):
	x = lambda a: (a, lista.count(a))
	return x

def star(n):
	s = ''
	for i in range(n):
		s = s + '*'
	return s

def remover(lista):
	l = []
	for i in lista:
		if i in l:
			continue
		l.append(i)
	return l

def get_strings(city):
	letters = remover(list(city.lower()))
	huss = list(map(c(city.lower()), letters))
	s = ''
	for (letter, co) in huss:
		if letter == ' ':
			continue
		s = s + letter + ':' + star(co) + ','
		s = s.strip()
	return s[:-1]


def get_strings(city):
	string = city.lower().replace(' ', '')
	output = ''
	for char in string:
		if char not in output:
			print(string.count(char))
			output += f"{char}:{'*' * string.count(char)},"
	return output[:-1]


def get_strings(city):
	soln = []
	used = ''
	for letter in city.lower():
		if letter in used or letter == ' ':
			continue
		else:
			solnstring = ''
			solnstring += letter + ':'
			for x in range(city.lower().count(letter)):
				solnstring += '*'
			soln.append(solnstring)
			used += letter
	return ','.join(soln)


def get_strings(str):
	output = ''
	str = str.lower().replace(' ', '')
	for char in str:
		if char not in output:
			output += f"{char}:{'*' * str.count(char)},"
	return output[:-1]


def get_strings(city):
	a = []
	b = []
	for i in city.lower():
		if i == ' ':
			continue
		if i in a:
			continue
		a += [i]
		b += [str(i) + ':' + '*' * city.lower().count(i)]
	return ','.join(b)


def get_strings(city):
	formatRes = ''
	string = ''
	newCity = city.lower().replace(' ', '')
	main = {}
	i = 0
	k = 0
	while i < len(newCity):
		if main.get(newCity[i]):
			bef = main[newCity[i]]
			main[newCity[i]] = bef + '*'
			i += 1
		else:
			main[newCity[i]] = '*'
			formatRes += newCity[i]
			i += 1
	while k < len(formatRes):
		string = string + formatRes[k] + ':' + main[formatRes[k]] + ','
		k += 1
	return string[:-1]


def get_strings(city):
	result = {}
	for i in city.lower():
		if i in result and i != ' ':
			result[i] += '*'
		elif i not in result and i != ' ':
			result[i] = '*'
	test = []
	for (k, v) in list(result.items()):
		test.append(k + ':' + v)
	return ','.join(test)


def get_strings(city):
	formatedS = city.replace(' ', '').lower()
	res = ''
	count = 1
	for (x, c) in enumerate(formatedS):
		for d in formatedS[x + 1:]:
			if d == c:
				count += 1
		if c not in res:
			res += c + ':' + '*' * count + ','
		count = 1
	return res[:-1]


def get_strings(city):
	l = []
	city = city.lower()
	city = city.replace(' ', '')
	for char in city:
		ast = city.count(char) * '*'
		l.append('%s:%s,' % (char, ast))
	l = list(dict.fromkeys(l))
	city = ''.join(l)
	return city[0:-1]


def get_strings(city):
	city = city.replace(' ', '')
	characters = list(city.lower())
	char_dict = {}
	final = ''
	for char in characters:
		if char in char_dict.keys():
			char_dict[char] = char_dict[char] + '*'
		else:
			char_dict[char] = char + ':*'
	for key in char_dict.values():
		final = final + (key + ',')
	return final[:-1]


def get_strings(city):
	dic = {}
	for chr in city.lower():
		if chr.isalpha():
			dic[chr] = dic.get(chr, '') + '*'
	return ','.join([i + ':' + dic[i] for i in dic])


def get_strings(city):
	record = []
	text = ''.join(city.split()).lower()
	collect = {}
	counter = 0
	for i in range(len(text)):
		if text[i] not in collect:
			counter = text.count(text[i])
			collect[text[i]] = ':' + counter * '*'
		else:
			counter += 1
	for (x, y) in list(collect.items()):
		record.append(x + y)
	return ','.join(record)


def get_strings(city):
	city = city.replace(' ', '')
	city = city.lower()
	d = dict()
	for letter in city:
		if letter not in d:
			d[letter] = '*'
		else:
			d[letter] += '*'
	letter_list = list(map(lambda v: f'{v[0]}:{v[1]}', d.items()))
	return ','.join(letter_list)


def get_strings(city):
	print(city)
	(city, m, mas, l) = (city.lower(), '', [], [])
	for i in set(city.lower()):
		if city.count(i) > 1:
			mas.append(i)
			l.append(city.count(i))
			for j in range(city.count(i) - 1):
				city = city[:city.rindex(i)] + city[city.rindex(i) + 1:]
	for i in city:
		if i in mas:
			m += i + ':' + '*' * l[mas.index(i)] + ','
		elif i != ' ':
			m += i + ':*' + ','
	return m[:len(m) - 1]


def get_strings(city):
	city = city.lower()
	res = []
	for x in city:
		c = city.count(x)
		st = f"{x}:{'*' * c}"
		if x.isalpha() and (not st in res):
			res.append(st)
	return ','.join(res)


def get_strings(city):
	city_list = list(city.lower())
	empty = []
	abet = [chr(i) for i in range(ord('a'), ord('z') + 1)]
	res = ''
	for i in range(0, len(city_list)):
		c = 0
		letter = city_list[i]
		for j in range(0, len(city_list)):
			if letter in abet:
				if letter == city_list[j]:
					c += 1
					city_list[j] = ''
			else:
				continue
		if letter in abet:
			res += letter + ':' + c * '*' + ','
		else:
			continue
	return res[0:len(res) - 1]


from collections import Counter

def get_strings(city):
	counts = Counter(city.replace(' ', '').lower())
	return ','.join([f"{x}:{'*' * counts[x]}" for x in counts])


from collections import OrderedDict

def get_strings(city):
	city = city.lower().replace(' ', '')
	city_short = ''.join(OrderedDict.fromkeys(city))
	city_string = ''
	for (char1, char2) in zip(city, city_short):
		value = city.count(char2)
		city_string += f"{char2}:{value * '*'},"
	city_string = city_string[:-1]
	return city_string


def get_strings(city):
	city = list(city.lower())
	if ' ' in city:
		for _ in range(city.count(' ')):
			city.remove(' ')
	r = ''
	while len(city):
		w = city[0]
		r += str(w) + ':' + '*' * int(city.count(w)) + ','
		for _ in range(city.count(w)):
			city.remove(w)
	return r[:-1]


def get_strings(city):
	city = city.lower()
	return ','.join((f"{letter}:{count * '*'}" for (letter, count) in {letter: city.count(letter) for letter in city if not letter.isspace()}.items()))


def get_strings(city):
	city = city.lower()
	return ','.join((f"{c}:{'*' * city.count(c)}" for c in dict.fromkeys(city) if c.isalpha()))


def get_strings(city):
	city = city.lower()
	return ','.join([f'{k}:{v}' for (k, v) in {c: '*' * city.count(c) for c in city if c != ' '}.items()])


def get_strings(city):
	string = []
	for i in city.lower():
		n = city.lower().count(i)
		if i + ':' + '*' * n not in string and i.isalpha():
			string.append(i + ':' + '*' * n)
	return ','.join(string)


def get_strings(city):
	dic = dict()
	for c in city.lower():
		if c.isalpha and c != ' ':
			dic[c] = dic.get(c, 0) + 1
	result = list()
	for (key, value) in dic.items():
		result.append('{}:{}'.format(key, value * '*'))
	out = ','.join(result)
	return out


def get_strings(city):
	dic = {}
	city = city.lower()
	for i in range(len(city)):
		if city[i] != ' ':
			dic[city[i]] = city.count(city[i])
	output: str = ','.join(('{}:{}'.format(key, val * '*') for (key, val) in list(dic.items())))
	return output


def get_strings(city):
	city = city.lower()
	emptystr = ''
	for letter in city.lower():
		num = city.count(letter)
		if letter not in emptystr:
			if letter == ' ':
				continue
			else:
				emptystr += letter + ':' + str(num * '*') + ','
		else:
			pass
	return emptystr[:-1]


def get_strings(city):
	alpha = ['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z']
	city_1 = ''
	for i in city:
		if i.lower() not in city_1 and i.isalpha():
			city_1 += i.lower()
		else:
			pass
	return ','.join(('{}:{}'.format(i, '*' * city.lower().count(i)) for i in city_1))


def get_strings(city):
	l = []
	[l.append(f"{x}:{city.lower().count(x) * '*'}") for x in city.lower() if f"{x}:{city.lower().count(x) * '*'}" not in l and x != ' ']
	return ','.join(l)


def get_strings(city):
	dict_letters = {}
	for i in city.replace(' ', '').lower():
		if i in dict_letters:
			dict_letters[i] += '*'
		else:
			dict_letters[i] = '*'
	string_counts = ''
	for (k, v) in dict_letters.items():
		string_counts += k + ':' + v + ','
	return string_counts[:-1]


def get_strings(city):
	lettercount = []
	check = ''
	for i in city.lower():
		if i not in check and i.isalpha():
			check = check + i
			string = '{}:{}'.format(i, city.lower().count(i) * '*')
			lettercount.append(string)
	return ','.join(lettercount)


def get_strings(city):
	dict = {}
	for c in city.lower():
		if not c.isspace():
			if c in dict:
				dict[c] += 1
			else:
				dict[c] = 1
	out = ''
	count = 1
	for x in dict:
		out += x + ':' + dict[x] * '*'
		if count != len(dict):
			out += ','
		count += 1
	return out


def get_strings(city):
	city = city.lower()
	c = []
	b = []
	for ans in city:
		if ans not in b and ans != ' ':
			b += ans
			c += [ans + ':' + city.count(ans) * '*']
	return ','.join(c)


from collections import Counter

def get_strings(city):
	city = [elem for elem in city.lower() if elem.islower()]
	a = Counter(city)
	return ','.join((f"{elem}:{'*' * a[elem]}" for elem in list(a.keys())))


from collections import Counter

def get_strings(city):
	myList = []
	counter = Counter(city.lower())
	for letter in counter:
		if letter == ' ':
			pass
		else:
			myList.append(letter + ':' + str('*' * city.lower().count(letter)))
	return ','.join(myList)


def get_strings(city):
	z = str()
	city = city.replace(' ', '').lower()
	for i in city:
		cnt = int(city.count(i))
		j = 1
		y = ''
		if z.find(i) == -1:
			y = i + ':'
			while j <= cnt:
				y = y + '*'
				j = j + 1
			y = y + ','
		z = z + y
	return z[:-1]


from collections import Counter

def get_strings(city):
	l = []
	d = Counter(city.lower())
	for (c, n) in d.items():
		if c == ' ':
			continue
		l.append(c + ':' + '*' * n)
	return ','.join(l)


from collections import Counter

def get_strings(city):
	return ','.join((f"{k}:{'*' * v}" for (k, v) in Counter(city.lower().replace(' ', '')).items()))


from collections import Counter

def get_strings(city):
	return ','.join((a + f":{'*' * b}" for (a, b) in Counter(city.lower().replace(' ', '')).items()))


def get_strings(city):
	city = city.lower()
	alpha = 'abcdefghijklmnopqrstuvwxyz'
	city_dict = {}
	for char in city:
		if char not in alpha:
			continue
		if char in city_dict:
			city_dict[char] += '*'
			continue
		city_dict[char] = '*'
	output = ''
	for k in city_dict:
		output += f'{k}:{city_dict[k]},'
	return output[0:-1]


def get_strings(city):
	new_city = ''.join(filter(str.isalpha, city.lower()))
	char_seen = []
	for char in new_city:
		if char not in char_seen:
			char_seen.append(char)
	count_char = []
	for char in char_seen:
		x = new_city.count(char)
		count_char.append(x)
	d = dict(zip(char_seen, count_char))
	total_str = ''
	for (char, count) in d.items():
		total_str += char + ':' + count * '*' + ','
	return total_str[:-1]


def get_strings(city):
	cityDict = {}
	for i in city.lower():
		if i.isalpha():
			if i not in cityDict:
				cityDict[i] = 1
			else:
				cityDict[i] += 1
	chars = []
	for i in cityDict.keys():
		chars.append('{}:{}'.format(i, '*' * cityDict[i]))
	return ','.join(chars)


def get_strings(city):
	city = city.lower()
	result = ''
	for i in city:
		if not i.isalpha():
			pass
		elif i in result:
			pass
		else:
			result += f"{i}:{'*' * city.count(i)},"
	return result[:-1]


from collections import Counter

def get_strings(city):
	c = Counter(list(filter(str.isalpha, city.lower())))
	return ','.join((f"{char}:{'*' * freq}" for (char, freq) in list(c.items())))


import json

def get_strings(city):
	cityAmount = {}
	for x in range(len(city)):
		if city[x] == ' ':
			continue
		if city[x].lower() in cityAmount:
			cityAmount[city[x].lower()] += '*'
		else:
			cityAmount[city[x].lower()] = '*'
	return ','.join(('{}:{}'.format(*i) for i in list(cityAmount.items())))


def get_strings(city):
	city = ''.join(city.lower().split())
	res = []
	letters = []
	for letter in city:
		if letter not in letters:
			res.append(str(letter + ':' + '*' * city.count(letter)))
			letters.append(letter)
	return ','.join(res)


def get_strings(city):
	c = {}
	for i in city.lower():
		if i == ' ':
			continue
		try:
			c[i] += 1
		except:
			c[i] = 1
	res = ''
	for (i, j) in c.items():
		res += i + ':' + '*' * j + ','
	return res[:len(res) - 1]