#include<iostream>
#include<fstream>
#include<stdlib.h>
#include<stdio.h>
using namespace std;
int main()
{
   #ifndef ONLINE_JUDGE
   freopen("input.txt","rt",stdin);
   freopen("output.txt","wt",stdout);
   #endif
   char a[10005]={'\0'};
   int i=0,n=0,g=0,n1,n2;
   bool f=true,ff=false;
   char ab[100]={'\0'};
   int tt=scanf("%s",a);
   while(tt>0)
   {
              strcat(a,ab);
              strcat(a," ");
              tt=scanf("%s",ab);
   }
   n=strlen(a)-1;
   for(i=0;i<n;i++)
   {
        if (32<=int(a[i])&&int(a[i])<=64||91<=int(a[i])&&int(a[i])<=96||123<=int(a[i])&&int(a[i])<=255)
        if (a[i]!='.'&&a[i]!='!'&&a[i]!='?') {continue;}
{continue;}
         if (a[i]=='.'||a[i]=='?'||a[i]=='!') {f=true; continue;}
         if (f&&'a'<=a[i]&&a[i]<='z') {g++; } f=false;

   }
   int k=0; n2=0;
   for(i=0;i<=n;i++)
   {
[i]=='.'||a[i]=='!'||a[i]=='?'||a[i]=='%')
      if (32<=int(a[i])&&int(a[i])<=64||91<=int(a[i])&&int(a[i])<=96||123<=int(a[i])&&int(a[i])<=255)
      {
        n1=n2; n2=i;
        for(int j=n1+1+k; j<n2; j++) if ('A'<=a[j]&&a[j]<='Z') g++;
        k=1;
      }
   }
   cout<<g<<endl;
   return 0;
}