import sys
reader = (s.rstrip() for s in sys.stdin)
input = reader.__next__


n,m,k = map(int, input().split())
op, *B = input().split()
B = list(map(int, B))
A = [int(input()) for i in range(n)]

if op == "+":
    ans = sum(A)*m + sum(B)*n
    ans %= k
else:
    sum_B = sum(B)
    sum_A = sum(A)
    ans = sum_A*sum_B
    ans %= k
print(ans)