#include <bits/stdc++.h> using namespace std; string str,s; int ans,p; int main() { while(getline(cin,s)) str+=s; for(char ch:str) { if(ch=='.'||ch=='!'||ch=='?') p=0; else if(ch>='a'&&ch<='z') ans+=!p,p=1; else if(ch>='A'&&ch<='Z') ans+=(p==1),p=1; else p=((p==0)?0:2); } cout<<ans; }