#include <iostream>
#include <stdio.h>
#include <ctype.h>
#include<stdio.h>

#include <fstream>
using namespace std;

ifstream fin("text.in");
ofstream fout("text.out");

int main ()
{
  int i=0;
  char str[]="- Lasa-ma in pace, ca am invatat azi noapte toata ziua!";
  int nrcuvinte=0;
  int caractere=0;
  bool cuv=0;
  while (str[i])
  {
    if (isalpha(str[i])){
    caractere++;
          if(cuv==0){
                     nrcuvinte++;
                     }               
    cuv=1;
                         
    
  }
  else{
      cuv=0;
       }
       i++;
  }

fout <<caractere/nrcuvinte<<endl;
  system("pause");
}