n, m, k = map(int, input().split())
l = list(map(str, input().split()))
b = [int(l[i]) for i in range(1, m+1)]

op = l[0]
#print(op)
#rint(b)

a = [0]*n
for i in range(n):
    a[i] = int(input())

#print(a)
#print(b)

if op == '+':
    ans = (sum(b)*n + sum(a)*m)%k
else:
    ans = (sum(a)*sum(b))%k
print(ans)