N, M, K= map(int, input().split())
src = list(input().split())
op = src[0]
B = []
for i in range(M):
    B.append( int(src[i + 1]) )
A = [int(input()) for i in range(N)]

ans = 0
if op == '+':
    for i in range(N):
        ans += A[i] * M
    for i in range(M):
        ans += B[i] * N
else:
    asum = 0
    for i in range(N):
        asum += A[i]
    for i in range(M):
        ans += B[i] * asum
ans %= K
print( ans )