using namespace std;
#include<stdio.h>
#include<ctype.h>
int main(){
	FILE*f=fopen("text.in","r");
	FILE*g=fopen("text.out","w");
	int k, nr, c, nrlitere, nrcuvinte;
	k=0;
	nr=0;
	nrlitere=0;
	nrcuvinte=0;
	while (!feof(f)){
		c=fgetc(f);
		if (isalpha(c)!=0) {nrlitere++; k=1;}
		else if (nr!=0){ if (k==1) nrcuvinte++;  k=0;}
		nr++;
	}
	nrlitere=nrlitere/nrcuvinte;
	fprintf(g,"%d\n",nrlitere);
	fclose(f);
	fclose(g);
	return 0;
}