n, m, k = map(int, input().split())
bw = list(map(str, input().split()))
a = [int(input()) for i in range(n)]
op = bw.pop(0)
b = [int(i) for i in bw]
ans = 0
aa = sum(a)
if op == "+":
	ans = (sum(a) * m + sum(b) * n)%k
else:
	for i in b:
		ans += i*aa
		ans %= k
print (ans)