#include<fstream>
#include<string>
#include<cstdio>
#define in "text.in"
#define out "text.out"
using namespace std;

int main()
{

    freopen(out,"w",stdout);
    ifstream inn(in);
    ofstream outt(out);

    bool ok=0;
    char c;
    int l=0,cuv=0;
    while(inn.get(c))
    {
        if(isalpha(c))
        {
            ok=1;
            ++l;
        }
        else if(ok)
        {
            ok=0;
            ++cuv;
        }
    }
    printf("%d",l/cuv);
    return 0;
}