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

#define SPACE 0
#define WORD 1


int main() {

    int c;
    int state = SPACE; 		/* I am in "space" mode */
    int count = 0;
    
    while ((c = getchar()) != EOF) {
	switch (state) {
	case SPACE:
	    if (!isspace(c)) {
		state = WORD;
		++count;
	    }
	    break;
	case WORD:
	    if (isspace(c))
		state = SPACE;
	    break;
	}
    }
    printf("%d\n", count);
}