N, M, K = map(int, input().split())
opB = list(input().split())
op = opB[0]
B = list(map(int, opB[1:]))
A = [int(input()) for i in range(N)]
if op == "+":
    ans = (M * sum(A) + N * sum(B)) % K
else:
    ans = (sum(A) * sum(B)) % K
print(ans)