#!/usr/bin/env python3
# %%
import sys
read = sys.stdin.buffer.read
readline = sys.stdin.buffer.readline
readlines = sys.stdin.buffer.readlines
import numpy as np


# %%
N, M, MOD = map(int, readline().split())
op = read(1).decode()
BA = np.array(read().split(), np.int64)

# %%
B = BA[:M]
A = BA[M:]

# %%


def solve_add(B, A):
    SA = A.sum() % MOD
    SB = B.sum() % MOD
    return (SA * len(B) + SB * len(A)) % MOD


# %%
def solve_mult(B, A):
    SA = A.sum() % MOD
    SB = B.sum() % MOD
    return SA * SB % MOD


# %%
answer = solve_add(B, A) if op == '+' else solve_mult(B, A)
print(answer)