#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;
}