Untitled

#include <bits/stdc++.h>

using namespace std;

void De_lesseps() {
    string s;
    getline(cin, s);
    int n = s.size();
    int cnt = 0;
    for (int i = 0; i < n; i++) {
        while (i < n && s[i] != ' ') i++;
        while (i < n and (s[i] == ' ' || s[i] == '.' || s[i] == '!' || s[i] == '?' || s[i] == ',')) i++;
        cnt++;
    }
    cout << cnt << '\n';
}

int main() {
    ios::sync_with_stdio(false),
            cin.tie(nullptr),
            cout.tie(nullptr);
    int t{1};
    while (t--) {
        De_lesseps();
    }
    return 0;
}