#include<fstream.h>   
int main()   
{   
char a='\0';   
short last_char=0,last_char2=0;   
unsigned long nr_word=0,l=0;   
ifstream f("text.in");   
ofstream g("text.out");   
  
while (!f.eof())   
 {   
  f.get(a);   
  if ((a>='a' && a<='z') || (a<='Z' && a>='A'))   
   {   
    if (last_char == 1)   
     {   
      l++;   
     }   
    else  
     {   
      nr_word++;   
      l++;   
     }   
    last_char=1;   
   }   
  else  
   {   
    last_char=0;   
   }   
 }   
  
g<<l/nr_word;   
  
f.close();   
g.close();   
return 0;   
}