import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

import java.util.*;

public class Main {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader in = new InputReader(inputStream);
        PrintWriter out = new PrintWriter(outputStream);
        int N = in.nextInt();
        int M = in.nextInt();
        int K = in.nextInt();
        String S = in.next();
        long[] B = new long[M];
        long[] A = new long[N];
        long B_sum = 0L;
        long A_sum = 0L;
        for (int i=0;i<M;i++) {
            B[i] = in.nextLong();
            B_sum += B[i];
        }
        for (int i=0;i<N;i++) {
            A[i] = in.nextLong();
            A_sum += A[i];
        }
        B_sum%=K;
        A_sum%=K;

        if (S.charAt(0)=='+') {
            out.println((N*B_sum%K+M*A_sum%K)%K);
        } else { // S.charAt(0)=='*'
            long ans = 0L;
            out.println(B_sum*A_sum%K);
        }
        // for (int i=0;i<N;i++) {
        //     StringBuilder sb = new StringBuilder();
        //     for (int j=0;j<M;j++) {
        //         long tmp = 0;
        //         if (S.charAt(0)=='+') {
        //             tmp = A[i]+B[j];
        //         } else { // S.charAt(0)=='*'
        //             tmp = A[i]*B[j];
        //         }
        //         sb.append(tmp);
        //         if (j!=M-1) sb.append(" ");
        //     }
        //     System.out.println(sb);
        // }
        out.close();
    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public long nextLong() {
            return Long.parseLong(next());
        }

    }
}