#include <stdio.h>
int main()
{
    char s[200];
    int i,n=0,flag=1;
    gets(s);
    for(i = 0; s[i]; i ++)
    {
        if(flag == 1)
        {
            if(s[i] != ' ')
            {
                n++;
                flag = 0;
            }
        }
        else if(s[i] == ' ')
            flag = 1;
    }
    printf("%d\n", n);
    return 0;
}

/**************************************************************
	Problem: 1106
	User: admin
	Language: C
	Result: Accepted
	Time:9 ms
	Memory:1036 kb
****************************************************************/