import sys
input=sys.stdin.readline
def I(): return int(input())
def MI(): return map(int, input().split())
def LI(): return list(map(int, input().split()))

def main():
    mod=10**9+7
    N,M,K=MI()
    Bo=input().split()
    B=list(map(int, Bo[1:]))
    A=[0]*N
    for i in range(N):
        A[i]=I()
        
    ans=0
    if Bo[0]=="+":
        for i in range(N):
            ans=(ans+A[i]*M)%K
        for j in range(M):
            ans=(ans+B[j]*N)%K
    else:
        S=sum(B)%K
        for i in range(N):
            ans=(ans+A[i]*S)%K
            
    print(ans)


main()