#include<stdio.h>
#include<string.h>
#define MAXLINIE 100
int main(){
	int nr=0, litere=0, ok=1;
	char c;
	FILE *f, *g;
	f = fopen("text.in","r");
	g = fopen("text.out", "w");
	if(f == NULL) perror ("error opening file");
	else{
		do{
			c = fgetc(f);
			if(isalpha(c)) {
				litere++;
				if(ok){
					nr++;
					ok = 0;
				}
			}
			else ok = 1;
		}while (c != EOF);
		fprintf(g, "%d\n", litere/nr);
		fclose(f);
		fclose(g);
	}
	return 0;
}