#include <iostream>
#include <fstream>
#include <cstring>
using namespace std;

ifstream fin ("text.in");
ofstream fout ("text.out");

string s;

int main(){
    int total=0, words=0;
    bool ok;
    getline (fin, s);

    for(int i=0; i<s.size(); i++){
        if(isalpha(s[i])) total++, ok= true;
        if(!isalpha(s[i+1]) && ok)  words++, ok= false;
    }
    fout << total/words;
    return 0;
}