---

#include <iostream>
#include <cstdlib>
#include <cstring>
using namespace std;
int main(int argc, char *argv[])
{

    char in0[99999] ;
    int ans=0;
    
    while (cin.getline(in0,99999)){
          
          for (short i=0 ;i<strlen(in0);i++ ){
              if ((in0[i]>='a'&&in0[i]<='z')||(in0[i]>='A'&&in0[i]<='Z'))//判斷字的開始
              {
                    for (;i<strlen(in0);i++){
                    
                    if ((in0[i]>='a'&&in0[i]<='z')||(in0[i]>='A'&&in0[i]<='Z'))//判斷字的結束
                    {ans=ans;}
                    else
                    {ans++;break;}
                    }
                    }
          }
          if ((in0[strlen(in0)-1]>='a'&&in0[strlen(in0)-1]<='z')||(in0[strlen(in0)-1]>='A'&&in0[strlen(in0)-1]<='Z')){ans++;}
          
          
          cout <<ans <<endl ;
          ans=0;
    }
}