X, Y, M = map(int, input().split())
ans = 0
cnt = 0
for r in range(1, (X-1) // 2 + 1):
   term = X - r*2
   assert term >= 0
   cnt += term
cnt *= Y*2
ans += cnt
cnt = 0
for r in range(1, (Y-1) // 2 + 1):
   term = Y - r*2
   assert term >= 0
   cnt += term
cnt *= X*2
ans += cnt
ans %= M
print(ans)