#include <bits/stdc++.h>

using namespace std;

string s;
int x,i,t,k,sum;

inline void Input()
{
    int lung;
    ifstream fin("text.in");
    while(fin>>s)
    {
        lung=s.length();
        for(i=0;i<lung;i++)
        {
            x=s[i]-'0';
            if((x<=42&&x>=17)||(x>=49&&x<=74))
            {
                sum++;//numar de caractere
                t=1;//daca a fost sau nu inainte litera
            }
            else
            {
                if(t==1)
                {
                    k++;//numarul de cuvinte
                    t=0;
                }
                t=0;
            }
        }
        if(t==1) k++;
        cout<<s<<" "<<x<<" "<<sum<<" "<<k<<"\n";
    }
    sum=sum/k;
    ofstream fout("text.out");
    fout<<sum<<"\n";
    fout.close();
}

int main()
{
    Input();
    return 0;
}