static long[] readExpression(Scanner sc, String finalToken) {
    String token = sc.next();
    long[] answer = new long[3];
    if (token.equals("left")) {
      answer[0] = sc.nextInt() % 1000003;
    } else if (token.equals("right")) {
      answer[1] = sc.nextInt() % 1000003;
    } else if (token.equals("forward")) {
      answer[2] = sc.nextInt() % 1000003;
    } else if (token.equals("repeat")) {
      long factor = sc.nextInt();
      sc.next();
      long[] next = readExpression(sc, "]");
      for (int i = 0; i < 3; i++) {
        answer[i] = (factor * (next[i] % MOD)) % MOD;
      }
    } else if (token.equals(finalToken)) {
      return answer;
    }
    long[] next = readExpression(sc, finalToken);
    for (int i = 0; i < 3; i++) {
      answer[i] += (next[i] % MOD);
      answer[i] %= MOD;
    }
    return answer;
  }