#include <iostream>
#include <fstream>

using namespace std;

ifstream f("text.in");
ofstream g("text.out");

char text[10000];

bool litera(char c)
{
    if(( int(c) >= 'a' && int(c) <= 'z') || (int(c) >= 'A' && int(c) <= 'Z')) return true;
    return false;
}

int main()
{
    int i=0;
    int nrL = 0;
    int nrC = 0;
    while(f.get(text[i]))
    {
        if(litera(text[i])) nrL++; /// Daca text[i] e o litera, incrementam contorul literelor
        else if( int(text[i]) == 32) nrC++;
        i++;
    }
    g << nrL/nrC;
    return 0;
}