[Link] https://www.acmicpc.net/problem/1644
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import java.util.*;
import java.io.*;
public class Main {
static BufferedReader br;
public static void main(String[] args) throws IOException {
br = new BufferedReader(new InputStreamReader(System.in));
StringBuilder sb = new StringBuilder();
int n = toi(br.readLine());
ArrayList<Integer> al = getPrime(n);
int left = 0, right = 0, size = al.size(), sum = 0, cnt = 0;
while(left < size && right <= size) {
if(sum < n) {
if(right == size) break;
sum += al.get(right++);
} else if(sum == n) {
cnt++;
sum -= al.get(left++);
} else {
sum -= al.get(left++);
}
}
print(cnt);
}
static ArrayList<Integer> getPrime(int n) {
ArrayList<Integer> al = new ArrayList<>();
for(int i = 2; i <= n; i++) {
boolean prime = true;
for(int e: al) {
if(e > Math.sqrt(i)) break;
if(i % e == 0) {
prime = false;
break;
};
}
if(prime) al.add(i);
}
return al;
}
static int toi(String s) { return Integer.parseInt(s); }
static String[] getLine() throws IOException { return br.readLine().split(" "); }
static int[] getArr() throws IOException { return Arrays.stream(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); }
static <T> void print(T s) { System.out.print(s); }
static <T> void println(T s) { System.out.println(s); }
}