You have a string of decimal digits s. Let's define bij = si·sj. Find in matrix b the number of such rectangles that the sum bij for all cells (i, j) that are the elements of the rectangle equals a in each rectangle.

A rectangle in a matrix is a group of four integers (x, y, z, t) (x ≤ y, z ≤ t). The elements of the rectangle are all cells (i, j) such that x ≤ i ≤ y, z ≤ j ≤ t.

Input

The first line contains integer a (0 ≤ a ≤ 109), the second line contains a string of decimal integers s (1 ≤ |s| ≤ 4000).

Output

Print a single integer — the answer to a problem.

Please, do not write the %lld specifier to read or write 64-bit integers in С++. It is preferred to use the cin, cout streams or the %I64d specifier.

Examples

Input

10
12345


Output

6


Input

16
439873893693495623498263984765


Output

40


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.util.ArrayList;
import java.util.Set;
import java.util.StringTokenizer;

public class C {
	static BufferedReader in;
	static StringTokenizer st;
	static PrintWriter out;
	public static void main(String[] args) throws IOException {
		begin();
		solve();
		end();
	}
	private static void end() {
		out.close();
	}
	private static void solve() throws IOException {
		int a = nextInt();
		char []s = next().toCharArray();
		int len = s.length;
		int []sum = new int [len+1];
		long ans = 0;
		for (int i = 0; i < len; i++) {
			sum[i+1] = sum[i]+s[i]-48;
		}
		int  []cnt = new int [400010];
		int all = 0;
		for (int i = 1; i <=len; i++) {
			for (int j = 0; j < i; j++) {
				cnt[sum[i]-sum[j]] ++;
				all++;
			}
		}
		for (int i = 1; i <=len; i++) {
			for (int j = 0; j < i; j++) {
				
				int t = sum[i]-sum[j];
				if(t!=0){
					if (a % t == 0){
						if(a/t < cnt.length)
							ans += cnt[a / t];
					}
				}else{
					if(t == 0 && a == 0){
						ans+=all;
					}
				}
			}
		}
		write(ans);
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
		
	
	}
	private static long nextLong() throws  IOException {
		return Long.parseLong(next());
	}
	private static void writeln(Object t) {
		out.println(t);
	}
	private static void write(Object t) {
		out.print(t);
	}
	private static int nextInt() throws  IOException {
		return Integer.parseInt(next());
	}
	private static String next() throws IOException {
		while (!st.hasMoreElements())
			st = new StringTokenizer(in.readLine());
		
		return st.nextToken();
	}
	private static void begin() {
		out = new PrintWriter(new OutputStreamWriter(System.out));
		st = new StringTokenizer("");
		in = new BufferedReader(new InputStreamReader(System.in));
	}

}
