N, M, K = map(int, input().split())
S = input()

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