#include <stdio.h>
#include <ctype.h>
int main ()
{ FILE *f=fopen("text.in","r");
FILE *g=fopen("text.out","w");
int k=0,nr=0,ma,ok=0;
char c;
fscanf (f,"%c",&c);
while (!feof(f))
	{ if (isalpha(c)) { nr++; ok=1;}
        else  if (ok==1) { k++; ok=0;}
	  fscanf (f,"%c",&c);
	}
if (ok==1) k++;
ma=nr/k;
fprintf (g,"%d",ma);
fclose (f);
fclose (g);
return 0;
}