#include <string>
#include <unordered_map>
#include <iostream>
using namespace std;

int main()
{
    unordered_map<string, size_t> wordcnt;
    string word;

    while(cin >> word)
        wordcnt[word]++;

    for(auto &i : wordcnt)
        cout << i.first << ": " << i.second << "\n";
}