def main():
    import sys
    input = sys.stdin.read().split()
    idx = 0
    N = int(input[idx])
    idx += 1
    M = int(input[idx])
    idx += 1
    K = int(input[idx])
    idx += 1
    
    op_line = input[idx:idx + 1 + M]
    op = op_line[0]
    B = list(map(int, op_line[1:1 + M]))
    idx += 1 + M
    
    A = list(map(int, input[idx:idx + N]))
    
    sum_a = 0
    for a in A:
        sum_a = (sum_a + (a % K)) % K
    
    sum_b = 0
    for b in B:
        sum_b = (sum_b + (b % K)) % K
    
    if op == '+':
        term1 = (sum_a * (M % K)) % K
        term2 = (sum_b * (N % K)) % K
        total = (term1 + term2) % K
    else:
        total = (sum_a * sum_b) % K
    
    print(total)
    
if __name__ == '__main__':
    main()