#include <bits/stdc++.h>
using namespace std;

#define pb push_back
#define F first
#define S second
#define double long double
#define ll long long
#define ull unsigned ll
#define pii pair < int, int >

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
    string s;
    getline(cin, s);
    int k = 0, z = 0, zzz = 0;
    while (z < s.size())
    {
        if (zzz == 0 && s[z] >= 'A' && s[z] <= 'Z')
        {
            zzz++;
            k++;
        }
        else if (s[z] >= 'a' && s[z] <= 'z')
            zzz = 0;
        else if (zzz > 0 && ((s[z] >= 'A' && s[z] <= 'Z') || (s[z] < 'A' || s[z] > 'Z')))
        {
            zzz++;
            if (zzz == 10)
                zzz = 0;
        }
        z++;
    }
    cout << k;
}