import numpy as np
n, m, k = map(int, input().split())
op, *element = input().split()
array = np.array([int(ele) for ele in element], dtype=np.int64)
res = 0
for _ in range(n):
    num = int(input())
    if op == '+':
        res += np.sum(array+num)
    elif op == '*':
        res += np.sum(array*num)
print(res%k)