#include <bits/stdc++.h>
using namespace std;

set<char> _set = {'!', '@', '#', '$'};

void check(string t) {
    int dx = 0, xx = 0, sz = 0, ts = 0;
    for (int i = 0; i < t.size(); i++) {
        if (isupper(t[i])) dx = 1;
        if (islower(t[i])) xx = 1;
        if (_set.count(t[i])) ts = 1;
        if (isdigit(t[i])) sz = 1;
        if (!isupper(t[i]) && !islower(t[i]) && !isdigit(t[i]) && !_set.count(t[i])) return;
    }
    if (dx + xx + sz < 2) return;
    if (ts == 0) return;
    cout << t << endl;
}
int main() {
    string s;
    cin >> s;
    s += ',';

    string t = "";
    for (int i = 0; i < s.size(); i++) {
        if (s[i] == ',') {
            check(t);
            t = "";
        } else
            t += s[i];
    }

    return 0;
}