// # A
// yukicoder no.485 main.go
package main

import (
	"bufio"
	"fmt"
	"io"
	"os"
)

func solve(in io.Reader, out, err io.Writer) {
	a, b := 0, 0
	fmt.Fscan(in, &a, &b)
	if (b/a)*a != b {
		fmt.Fprintln(out, "NO")
	} else {
		fmt.Fprintln(out, (b / a))
	}
}

func main() {
	br := bufio.NewReaderSize(os.Stdin, int(1e7))
	solve(br, os.Stdout, os.Stderr)
}