from functools import reduce
N,M,K = map(int,input().split())
op,*B = input().split()
A = [int(input()) for i in range(N)]

sa = sum(A)
sb = sum([int(b) for b in B])

if op=='*':
    ans = sa*sb%K
else:
    ans = (sa*M+sb*N)%K
print(ans)