def main():
    import sys
    input = sys.stdin.readline

    N, M, K = map(int, input().split())
    line = input().split()
    op = line[0]
    B = list(map(int, line[1:]))
    A = [0] * N
    for i in range(N):
        A[i] = int(input())

    if op == '+':
        SA = 0
        for a in A:
            SA = (SA + a)%K
        SB = 0
        for b in B:
            SB = (SB + b) % K
        print(((SA * M)%K + (SB * N)%K)%K)
    else:
        SA = 0
        for a in A:
            SA = (SA + a) % K
        SB = 0
        for b in B:
            SB = (SB + b) % K
        print((SA * SB)%K)


if __name__ == '__main__':
    main()