#include <stdio.h>
#include <ctype.h>

int main() {
    unsigned int w = 0;		/* counter */
    int c;

 Space:
    c = getchar();
    if (c == EOF) goto End;
    if (isspace(c)) goto Space;

    ++w;
 Word:
    c = getchar();
    if (c == EOF) goto End;
    if (isspace(c)) goto Space;
    goto Word;

 End:
    printf("%u\n", w);
    return 0;
}