package com.codegym.task.task04.task0428;
/*
Positive number
*/
import java.io.*;
import java.util.*;
public class Solution {
public static void main(String[] args) throws Exception {
//write your code here
Scanner sc=new Scanner(System.in);
int []arr=new int[3];
arr[0]=sc.nextInt();
arr[1]=sc.nextInt();
arr[2]=sc.nextInt();
int count=0;
for(int i=0;i<3;i++){
if(arr[i]>0);
count++;
}
System.out.println(count);
}
}