#include <iostream>
#include <string>
using namespace std;
int main()
{
char tab[52]{};
for (int i{}; i<52; i++)
{
if (i < 26)
tab[i] = i + 97;
else tab[i] = i + 39;
}
int zlicz[52]{};
int n;
string linijka;
char lit;
cin >> n;
cin.ignore(1000,'\n');
for (int i{}; i < n; i++)
{
getline(cin, linijka);
for (auto znak : linijka)
{
for (int k = 0; k < 46; k++)
if (znak == tab[k]) ++zlicz[k];
}
}
for (int k = 0; k < 46; k++)
{
if (zlicz[k])
cout << tab[k] << " " << zlicz[k] << endl;
}
return 0;
}
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