#include <iostream>
using namespace std;
int main() {
string s;
cin >> s;
int tab[26];
for(int i=0; i<26; i++) {
tab[i] = 0;
}
for(int i=0; i<s.size(); i++) {
int numer = s[i]-'a';
tab[numer]++;
}
for(int i=0; i<26; i++) {
if(tab[i]>0) {
cout << (char)('a'+i) << " " << tab[i] << "\n";
}
}
return 0;
}
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