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

int main() {

    FILE* in = fopen("text.in", "r");
    FILE* out = fopen("text.out", "w");

    char c;
    int lWord = 0;
    int lText = 0;
    bool cuv = false;

    while(fscanf(in, "%c", &c) != EOF) {

        if((c >= 'a' && c <= 'z') || (c >= 'A' && c <='Z')) {

            if(cuv == false) {

                lText++;
                cuv = true;

            }
            lWord++;

        } else
            cuv = false;

    }
    fprintf(out, "%d", lWord/lText);
    return 0;

}