uva 494

#include<stdio.h>
int main()
{
    char s[1000];
    int i, c;
    while(gets(s))
    {
        c = 0;
        for(i = 0; s[i] != '\0'; i++)
        {
               if(((s[i] >= 'a' && s[i] <= 'z') || (s[i] >= 'A' && s[i] <= 'Z')) && (s[i+1] < 'a' || s[i+1] > 'z')
                                                                                                                                         && (s[i+1] < 'A' || s  [i+1] > 'Z'))
             {
                   c++;
             }
        }
         printf("%d\n",c);
     }
    return 0;
}