#include <bits/stdc++.h>

using namespace std;

int main()
{
    ifstream f("fractari.in");
    ofstream g("fractari.out");
    char s[100000], *p;
    int nrLit=0, nrCuv=0, n;
    f.getline(s, 256);
    n=strlen(s);
    p=strtok(s, " -,.?!");
    for(int i=0;i<n;i++)
        if((s[i]>=65 && s[i]<=90) || (s[i]>=97 && s[i]<=122))
            nrLit++;
        while(p)
        {
            nrCuv++;
            p=strtok(NULL, " -,.?!");
        }
    g<<nrCuv;
    return 0;
}