#include <iostream>
#include <cctype>
using namespace std;

struct digits
{
	unsigned freq;
	char letter;
};

int main()
{
	digits digit[26];
	for (int i = 0; i < 26; i++)
	{
		digit[i].letter = ('a' + i);
		digit[i].freq = 0;
	}

	char ch = 0;
	while (ch != '.')
	{
		cin.get(ch);
		// I intialized digit[] in alphabetical order
		// this means that I can directly index
		if(isalpha(ch)) {
			ch = tolower(ch);
			digit[ch - 'a'].freq++;
		}
	}

	for (int i = 0; i < 25; i++)
	{
		int max = i;
		for (int j = i; j < 26; j++)
		{
			if (digit[j].freq > digit[max].freq)
			{
				max = j;
			}
		}
		digits tmp = digit[i];
		digit[i] = digit[max];
		digit[max] = tmp;
	}
	
	for (int i = 0; i < 26; i++)
	{
		if(digit[i].freq) {
			cout << "	 " << digit[i].letter << "	  " << digit[i].freq << endl;
		}
	}
		
}