import sys



input_methods=['clipboard','file','key']

using_method=0

input_method=input_methods[using_method]



tin=lambda : list(map(int, input().split()))

lin=lambda : list(tin())

mod=1000000007



#+++++



def main():

	#a = int(input())

	n, m, k = tin()

	#s = input()

	for ni in range(n+1):

		for mi in range(m+1):

			bn = ni*(m-mi) + (n-ni)*(mi)

			if bn == k:

				return 'Yes'

	return 'No'

	

	

#+++++

isTest=False



def pa(v):

	if isTest:

		print(v)

		

def input_clipboard():

	import clipboard

	input_text=clipboard.get()

	input_l=input_text.splitlines()

	for l in input_l:

		yield l



if __name__ == "__main__":

	if sys.platform =='ios':

		if input_method==input_methods[0]:

			ic=input_clipboard()

			input = lambda : ic.__next__()

		elif input_method==input_methods[1]:

			sys.stdin=open('inputFile.txt')

		else:

			pass

		isTest=True

	else:

		pass

		#input = sys.stdin.readline

			

	ret = main()

	if ret is not None:

		print(ret)
import sys



input_methods=['clipboard','file','key']

using_method=0

input_method=input_methods[using_method]



tin=lambda : list(map(int, input().split()))

lin=lambda : list(tin())

mod=1000000007



#+++++



def main():

	#n = int(input())

	n, m, k = tin()

	#s = input()

	for ni in range(n+1):

		for mi in range(m+1):

			nb = ni*(m-mi) + (n-ni)*mi

			if k == nb:

				return 'Yes'

	return 'No'



	

	

#+++++

isTest=False



def pa(v):

	if isTest:

		print(v)

		

def input_clipboard():

	import clipboard

	input_text=clipboard.get()

	input_l=input_text.splitlines()

	for l in input_l:

		yield l



if __name__ == "__main__":

	if sys.platform =='ios':

		if input_method==input_methods[0]:

			ic=input_clipboard()

			input = lambda : ic.__next__()

		elif input_method==input_methods[1]:

			sys.stdin=open('inputFile.txt')

		else:

			pass

		isTest=True

	else:

		pass

		#input = sys.stdin.readline

			

	ret = main()

	if ret is not None:

		print(ret)
import sys

input_methods = ["clipboard", "file", "key"]
using_method = 0
input_method = input_methods[using_method]
tin = lambda: list(map(int, input().split()))
lin = lambda: list(tin())
mod = 1000000007
# +++++
def main():
    # a = int(input())
    n, m, k = tin()
    # s = input()
    for ni in range(n + 1):
        for mi in range(m + 1):
            bn = ni * (m - mi) + (n - ni) * (mi)
            if bn == k:
                return "Yes"
    return "No"


# +++++
isTest = False


def pa(v):
    if isTest:
        print(v)


def input_clipboard():
    import clipboard

    input_text = clipboard.get()
    input_l = input_text.splitlines()
    for l in input_l:
        yield l


if __name__ == "__main__":
    if sys.platform == "ios":
        if input_method == input_methods[0]:
            ic = input_clipboard()
            input = lambda: ic.__next__()
        elif input_method == input_methods[1]:
            sys.stdin = open("inputFile.txt")
        else:
            pass
        isTest = True
    else:
        pass
        # input = sys.stdin.readline
    ret = main()
    if ret is not None:
        print(ret)

import sys

input_methods = ["clipboard", "file", "key"]
using_method = 0
input_method = input_methods[using_method]
tin = lambda: list(map(int, input().split()))
lin = lambda: list(tin())
mod = 1000000007
# +++++
def main():
    # n = int(input())
    n, m, k = tin()
    # s = input()
    for ni in range(n + 1):
        for mi in range(m + 1):
            nb = ni * (m - mi) + (n - ni) * mi
            if k == nb:
                return "Yes"
    return "No"


# +++++
isTest = False


def pa(v):
    if isTest:
        print(v)


def input_clipboard():
    import clipboard

    input_text = clipboard.get()
    input_l = input_text.splitlines()
    for l in input_l:
        yield l


if __name__ == "__main__":
    if sys.platform == "ios":
        if input_method == input_methods[0]:
            ic = input_clipboard()
            input = lambda: ic.__next__()
        elif input_method == input_methods[1]:
            sys.stdin = open("inputFile.txt")
        else:
            pass
        isTest = True
    else:
        pass
        # input = sys.stdin.readline
    ret = main()
    if ret is not None:
        print(ret)

-    # a = int(input()) +    # n = int(input()) -            bn = ni * (m - mi) + (n - ni) * (mi) -            if bn == k: +            nb = ni * (m - mi) + (n - ni) * mi +            if k == nb: