#include <iostream>

using namespace std;

string s;

int main()
{
    cin >> s;
    s = s + "!";

    for (int i = 0; i < s.size(); i++) {
        if (s[i] >= 'A') && (s[i] <= 'Z') {
                if () {
                    q = "";
                    k = 1;
                }

        }
        else
            if (s[i] >= '0') && (s[i] <= '9') {
                k++;
                q = q+s[i];
            }
            else {
                k = 0;
                // H123654??
                if (max ) {
                    q = "";
                    k = 1;
                }
            }
    }

    return 0;
}