#include <stdio.h>

int main()
{
	FILE *f=fopen("text.in", "r"), *g=fopen("text.out", "w");
	int n, p;
	char ch1=0, ch2=0;
	
	n=p=0;	
	while (ch1!=EOF)
	{
		//fscanf(f, "%c", &ch2);
                ch2=fgetc(f);
		if ((ch2>='a' && ch2<='z') || (ch2>='A' && ch2<='Z'))
			if ((ch1>='a' && ch1<='z') || (ch1>='A' && ch1<='Z'))
				n++;
			else
			{
				n++;
                                p++;
			}
		ch1=ch2;
	}

	fprintf(g, "%d\n", n/p);
	fclose(f);
	fclose(g);
	return 0;
}       // - Lasa-ma in pace, ca am invatat azi noapte toata ziua!