# coding: utf-8
# Your code here!

import sys
readline = sys.stdin.readline
read = sys.stdin.read

n,m,k = [int(i) for i in readline().split()]

x = readline().split()
op = x[0]

b = [int(i) for i in x[1:]]
a = [int(i) for i in read().split()]


#print(op,b,a)
if op == "+":
    print((sum(b)*len(a)+len(b)*sum(a))%k)



else:
    print(sum(b)*sum(a)%k)