from math import gcd
import sys, time, random
from collections import deque, Counter, defaultdict
def debug(*x):print('debug:',*x, file=sys.stderr)
input = lambda: sys.stdin.readline().rstrip()
ii = lambda: int(input())
mi = lambda: map(int, input().split())
li = lambda: list(mi())
inf = 2 ** 61 - 1

x, y, mod = mi()
ans = 0
#縦
cnt = 0
for i in range(1, x + 1):
    if 2 * i > x:
        break
    cnt += (x - 2 * i)
ans += 2 * y * cnt
ans %= mod
#横
cnt = 0
for i in range(1, y + 1):
    if 2 * i > y:
        break
    cnt += (y - 2 * i)
ans += 2 * x * cnt
ans %= mod
print(ans)