N,M,K=map(int,input().split())
data=input().split()
B=map(int,data[1:M+1])
A=[int(input()) for i in range(N)]
Bsum=sum(B)%K
ans=0
if data[0]=="*":
    for i in range(N):
        ans+=A[i]*Bsum
        ans%=K
else:
    ans+=Bsum*N+(sum(A)%K)*M
    ans%=K
print(ans)