use std::io::Read;

fn main() {
    let mut input = String::new();
    std::io::stdin().read_to_string(&mut input).ok();
    let mut input = input.trim().split("\n");

    let mut line = input.next().unwrap().split_whitespace();
    let n: u64 = line.next().unwrap().parse().unwrap();
    let m: usize = line.next().unwrap().parse().unwrap();
    let k: u64 = line.next().unwrap().parse().unwrap();

    let mut line = input.next().unwrap().split_whitespace();
    let op: &str = line.next().unwrap();
    let b: Vec<u64> = line.map(|c| c.parse().unwrap()).collect();

    let a = input.map(|c| c.trim().parse::<u64>().unwrap());
    
    let base: u64 = a.sum();
    let mut ans: u64 = 0;
    let f: Box<dyn Fn(u64) -> u64> = match op  { 
        "+" => Box::new(|x: u64| base + x * n),
        _ => Box::new(|x: u64| x * base),
    };
    for i in 0..m {
        ans += f(b[i]);
    }

    println!("{}", ans%k);
}