from sys import stdin
def main():
    #入力
    readline=stdin.readline
    N,M,K=map(int,readline().split())
    opB=readline().split()
    op=opB[0]
    B=list(map(int,opB[1:]))
    A=[0]*N
    for i in range(N):
        A[i]=int(readline())

    S_A=sum(A)%K
    S_B=sum(B)%K
    if op=="+":
        print((S_A*M+S_B*N)%K)
    elif op=="*":
        print(S_A*S_B%K)

if __name__=="__main__":
    main()