#include <stdio.h>
#include  <string.h>
int main()
{
	char s[6];
	int count=0;
	int co = 0;
	scanf("%s", s);
	for (int k = 0; k < 6;k++)
	{
		if (s[k] == '\0')
		{
			break;
		}
		count++;
	}
	for (int i = 0; i < 6; i++)
	{
		int nu;
		if (s[i] == '\0')
		{
			break;
		}
		nu = (int)s[i];
		if (nu == 32 ||nu == 10)
		{
			co++;
		}
	}
	printf("%d", count - co);
	return 0;
}