#include<stdio.h>
#include<ctype.h>
int main()
{char c;
long s,cuv=0,l=0,ok=0;
FILE *f=fopen("intrare.txt","r");
FILE *g=fopen("iesire.txt","w");
fscanf(f,"%c",&c);
while(!feof(f))
{
	if(('a'<=c&&c<='z')||('A'<=c&&c<='Z'))
	   {
		  ok=1;
		  l++;
	   }
	else 
	   {
		  if(ok==1)cuv++;
		  ok=0;
	   }
    fscanf(f,"%c",&c);
}
s=l/cuv;
fprintf(g,"%d",s);
fclose (f);
fclose (g);
return 0;
}