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.IOException;
import java.util.InputMismatchException;

/**
 * Created by jizhe on 2016/2/5.
 */
public class Matrix {
    public static class FasterScanner {
        private byte[] buf = new byte[1024];
        private int curChar;
        private int numChars;

        public int read() {
            if (numChars == -1)
                throw new InputMismatchException();
            if (curChar >= numChars) {
                curChar = 0;
                try {
                    numChars = System.in.read(buf);
                } catch (IOException e) {
                    throw new InputMismatchException();
                }
                if (numChars <= 0)
                    return -1;
            }
            return buf[curChar++];
        }

        public String nextLine() {
            int c = read();
            while (isSpaceChar(c))
                c = read();
            StringBuilder res = new StringBuilder();
            do {
                res.appendCodePoint(c);
                c = read();
            } while (!isEndOfLine(c));
            return res.toString();
        }

        public String nextString() {
            int c = read();
            while (isSpaceChar(c))
                c = read();
            StringBuilder res = new StringBuilder();
            do {
                res.appendCodePoint(c);
                c = read();
            } while (!isSpaceChar(c));
            return res.toString();
        }

        public long nextLong() {
            int c = read();
            while (isSpaceChar(c))
                c = read();
            int sgn = 1;
            if (c == '-') {
                sgn = -1;
                c = read();
            }
            long res = 0;
            do {
                if (c < '0' || c > '9')
                    throw new InputMismatchException();
                res *= 10;
                res += c - '0';
                c = read();
            } while (!isSpaceChar(c));
            return res * sgn;
        }

        public int nextInt() {
            int c = read();
            while (isSpaceChar(c))
                c = read();
            int sgn = 1;
            if (c == '-') {
                sgn = -1;
                c = read();
            }
            int res = 0;
            do {
                if (c < '0' || c > '9')
                    throw new InputMismatchException();
                res *= 10;
                res += c - '0';
                c = read();
            } while (!isSpaceChar(c));
            return res * sgn;
        }

        public int[] nextIntArray(int n) {
            int[] arr = new int[n];
            for (int i = 0; i < n; i++) {
                arr[i] = nextInt();
            }
            return arr;
        }

        public long[] nextLongArray(int n) {
            long[] arr = new long[n];
            for (int i = 0; i < n; i++) {
                arr[i] = nextLong();
            }
            return arr;
        }

        private boolean isSpaceChar(int c) {
            return c == ' ' || c == '\n' || c == '\r' || c == '\t' || c == -1;
        }

        private boolean isEndOfLine(int c) {
            return c == '\n' || c == '\r' || c == -1;
        }
    }

    public static void main(String[] args) {
        //Scanner in = new Scanner(new BufferedInputStream(System.in));
        FasterScanner in = new FasterScanner();

        int A = in.nextInt();
        String s = in.nextString();

        int N = s.length();
        int[][] sumMatrix = new int[N][N];
        int[] stat = new int[9*N+1];
        long count = 0;
        for( int i = 0; i < N; i++ )
        {
            sumMatrix[i][i] = (s.charAt(i)-'0');
            stat[sumMatrix[i][i]]++;
            for( int j = i+1; j < N; j++ )
            {
                sumMatrix[i][j] = sumMatrix[i][j-1]+s.charAt(j)-'0';
                stat[sumMatrix[i][j]]++;
            }
        }

        /*System.out.printf("sumMatrix:\n");
        for( int i = 0; i < N; i++ )
        {
            for( int j = 0; j < N; j++ )
            {
                System.out.printf("%d ", sumMatrix[i][j]);
            }
            System.out.printf("\n");
        }*/

        for( int i = 0; i < N; i++ )
        {
            for( int j = i; j < N; j++ )
            {
                if( sumMatrix[i][j] == 0 )
                {
                    if( A == 0 )
                    {
                        count += N*(N+1)/2;
                    }
                }
                else
                {
                    int sum2 = A/sumMatrix[i][j];
                    if( A%sumMatrix[i][j] == 0 && sum2 <= 9*N )
                    {
                        count += stat[sum2];
                    }
                }
            }
        }

        System.out.printf("%d\n", count);
    }
}
