#include <stdio.h>
#include <stdlib.h>

int main(void) {
    FILE *f = fopen("text.in", "r");
    int in_word = 0, word_count = 0, letter_count = 0;
    char c;
    
    do {
        c = fgetc(f);
        if((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')) {
            in_word = 1;
            letter_count++;
        } else {
            if(in_word == 1) {
                word_count++;
                in_word = 0;
            }
        }
    } while(c != EOF);
    fclose(f);
    
    f = fopen("text.out", "w");
    fprintf(f,"%d",letter_count / word_count);
    fclose(f);
    
    return 0;
}