#include<stdio.h>
#include<string.h>
int main ()
{unsigned long ok1,ok2,lt,n,i; FILE *f1,*f2; char a;
f1=fopen("text.in","r");
lt=0; n=0;
ok1=1;ok2=0;
while (!feof(f1))
{fscanf(f1,"%c",&a);
 if((a>=65 && a<=90) || (a>=97 && a<=122) && a!='\n')
		{lt++; ok2=1; }
 else {if(ok2) {n++; ok2=0;}
		 ok1=1;}

 }
if (ok2) n++;
f2=fopen("text.out","w");
fprintf(f2,"%ld",lt/n);
fclose(f1);fclose(f2);
return 0;}