tmp = list(map(int, input().split()))
N, M, K = tmp[0], tmp[1],tmp[2]

tmp = input().split()
op, B = tmp[0], tmp[1:]
A = [input() for _ in range(N)]

tmp = []
if op == '+':
    for a in A:
        for b in B:
            tmp.append(int(a)+int(b))
if op == '*':
    for a in A:
        for b in B:
            tmp.append(int(a)*int(b))

print(sum(tmp) % K)