n, m, k = [int(x) for x in input().split()]
b = input().split()
op = b.pop(0)
sb = sum(list(map(int, b)))
a = [int(input()) for _ in range(n)]
s = 0
for aa in a:
    if op == "+":
        s += sb + aa * m
    else:
        s += sb * aa
print(s % k)