import numpy as np
N,M,K = map(int,input().split())
B = input().split()
Bi = []
for i in range(1,M+1):
    Bi.insert(i-1,(int(B[i])%K))

A = []
for i in range(N):
    A.append(int(input())%K)
arra = np.array(A)
arrb = np.array(Bi)

ans = 0
if B[0] == '+':
    ans = (arra.sum()%K)*(M%K) + (arrb.sum()%K)*(N%K)
    ans %= K
elif B[0] == '*':
    ans += (arrb.sum()%K) * (arra.sum()%K)
    ans %= K
print(ans)