#include <bits/stdc++.h>
using namespace std;
 
int main() {
    string str;
    getline(cin, str);
 
    string so = "", chu = "", dacbiet = "";
 
    for (char c : str) {
        if ('0' <= c && c <= '9')
            so += c;
        else if (('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z'))
            chu += c;
        else
            dacbiet += c;
    }
 
    cout << "Chuoi so: " << so << '\n';
    cout << "Chuoi chu: " << chu << '\n';
    cout << "Chuoi dac biet: " << dacbiet << '\n';
 
    return 0;
}

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