#include <bits/stdc++.h>
using namespace std;
int main() {
 string s;
 while (getline(cin,s)) {
     int counts = 0;
     for (int i=0; i<s.length(); i++) {
         if (s[i]>='a' && s[i]<='z') {
             counts++;
             continue;
         }
         if (s[i]==' '||s[i]=='.') {
             if (counts!=0) {
                 cout<<counts;
                 cout<<" ";
             }
             counts=0;
         }
     }
 }
}