#include <stdio.h>

int main() {
	char  arr[100] = { 0 };
	int len = 0;
	int count = 0;
	
	for (int i = 0; i<100;i++) {
		scanf("%c",& arr[i]);
		len++; if (arr[i] == '\n')break;
	}
	for (int i = 1; i < len; i++) {
		if (arr[i] != ' ') count++;
		else if (arr[i ]!= '\n')count++;
		
	}printf("%d", count);
	return 0;
}