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void setup()
{
  for (int i=6; i<=13; i++)
  {
      pinMode(i, OUTPUT);
  }
}

int n = 13;
int add = -1;

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int button;
int last_button;
int led_state = LOW;

void setup()
{
    pinMode(13, OUTPUT);
    pinMode(2, INPUT_PULLUP);
}

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import hashlib
import json
from time import time

class Blockchain:
    def __init__(self):
        self.chain = []
        self.pending_transactions = []

        self.new_block(previous_hash="1234", proof=100)

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#include <Adafruit_NeoPixel.h>
# define PIN 2
# define NUM_PIXELS 6

Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUM_PIXELS, PIN);

void setup()
{
    pixels.begin();
}

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#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup()
{
    // Set the size of the display
    lcd.begin(16, 2);
    // Print out some text
    lcd.print("This is a really long line.");

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{% extends "layout.html" %}

{% block body %}
<form action="/add" method="post">
    <input type="text" name="task">
    <input type="submit">
</form>
{% endblock %}

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#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

void setup()
{
    lcd.begin(16, 2);
}

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#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

byte pacman1[] = {
  B01110,
  B11111,
  B11011,
  B11111,
  B11100,

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# This program finds a value for D in the RSA algorithm
# Given values for A and E

A = int(input("A: "))
E = int(input("E: "))

# Start at E so D will be bigger
n = E
while True:
    n += 1

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# Run `pip install pycryptodome` to install Crypto library
from Crypto.PublicKey import RSA
from Crypto.Signature import pss
from Crypto.Hash import SHA256
import base64

def sign():
    with open("private.key", "r") as file:
        data = file.read()
    private_key = RSA.import_key(data)