#include <stdio.h>

int main(){
  FILE *fa,*fr;
  int c, cnt;
  cnt = 0;

  fr= fopen ("vstup.txt", "r");
  fa= fopen ("cisla.txt", "a");

  while ((c = getc(fr)) !=EOF){

    if (c >= 'a' && c <= 'z'){
      cnt++;
  	}
    putc (c, fa);

    if (c == '\n'){
      	fprintf (fa, "%d\n", cnt);
    	cnt = 0;
    }

  }

  fclose(fr);
  fclose(fa);

  return 0;
}