package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)
var rdr = bufio.NewReaderSize(os.Stdin, 1000000)

func main() {
	sc.Split(bufio.ScanWords)
	n, m, c := nextInt(), nextInt(), nextInt()
	if n == 1 || m == 1 {
		fmt.Println("NO")
		return
	}

	if n*m%2 == 0 {
		fmt.Println("YES")
		return
	}
	if c%2 == 1 {
		fmt.Println("NO")
		return
	}

	fmt.Println("NO")
}

func nextLine() string {
	sc.Scan()
	return sc.Text()
}

func nextInt() int {
	i, _ := strconv.Atoi(nextLine())
	return i
}