N,M,K=map(int,input().split())
temp=list(input().split())
col=list(map(int,temp[1:]))
data=[]
for i in range(N):
    data.append(int(input()))


if temp[0]=="+":
    print((sum(col)*N+sum(data)*M)%K)
else:
    print((sum(col)*sum(data))%K)

#print(col)
#print(data)