#!/usr/bin/env python3

n, m, k = list(map(int, input().split()))

for i in range(n + 1):

    for j in range(m + 1):

        if m * i + j * n - 2 * i * j == k:

            print("Yes")

            exit()

print('No')

#!/usr/bin/env python3

n, m, k = list(map(int, input().split()))

for i in range(n + 1):

    a = k - i * m

    b = n - 2 * i

    if b != 0 and a % b == 0 and 0 <= a // b <= m:

        print("Yes")

        exit()

print("No")

#!/usr/bin/env python3
n, m, k = list(map(int, input().split()))
for i in range(n + 1):
    for j in range(m + 1):
        if m * i + j * n - 2 * i * j == k:
            print("Yes")
            exit()
print("No")

#!/usr/bin/env python3
n, m, k = list(map(int, input().split()))
for i in range(n + 1):
    a = k - i * m
    b = n - 2 * i
    if b != 0 and a % b == 0 and 0 <= a // b <= m:
        print("Yes")
        exit()
print("No")

-    for j in range(m + 1): -        if m * i + j * n - 2 * i * j == k: -            print("Yes") -            exit() +    a = k - i * m +    b = n - 2 * i +    if b != 0 and a % b == 0 and 0 <= a // b <= m: +        print("Yes") +        exit()