n, m, k = map(int, input().split())
op, *b = input().split()
b = [int(x) for x in b]
a = [int(input()) for _ in range(n)]

res = 0
if op == '+':
    for be in b:
        res += be * n
    for ae in a:
        res += ae * m
else:
    res = 0
    aa = sum(a)
    bb = sum(b)
    #for ae in a:
        #res += ae * bb
    res = aa * bb

print(res % k)