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#define ROW_1 2
#define ROW_2 3
#define ROW_3 4
#define ROW_4 5
#define ROW_5 6
#define ROW_6 7
#define ROW_7 8
#define ROW_8 9

#define COL_1 10

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#Image Captcha: 

from captcha.image import  ImageCaptcha 

image = ImageCaptcha 

data = image.generate(‘9876543’) 

image.write (‘9876543’,’sam.png’) 

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# UNDIRECTED GRAPH

'''
ADJ MATRIX
ADJ LIST
'''

'''
V E
FOR EVERY EDGE

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# n convert it into binary
def intToBin(n):
    return str(bin(n))[2:]

# bin to int 
def binToInt(s):
    return int(s,2)

# kth bit set from right
def kthbit(n,k):

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# ispowerof 2
# n -> input
# True/False -> output
# check if n is a powerof 2
# 512 -> True 512 = 2**9
# 1024 -> True 1024 = 2**10

def ispowerof2(n):
    # T.C = O(1)
    if n <= 0:

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# bitwise operator and - &
# bitwise operator or - |
# bitwise operator not - ~
# bitwise operator xor - ^
# bitwise operator  right shift - >> 
# bitwise operator left shift <<
# rightshift is divide in power of 2
# leftshift is multiply in power of 2
def evenodd(n):
    if n&1 == 1:

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from math import *
def genprimes(n):
    primes = [True]*(n+1)
    primes[0] = False
    primes[1] = False
    for p in range(2,int(sqrt(n))+1):
        if primes[p] == True:
            for i in range(p*p,n+1,p):
                primes[i] = False

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# Prime numbers two factors 1 , Number Itself
# Approach One O(n)
# Aprroach Two: Base Case + Hint: O(1) -> O(root(N))
from math import *

def approach1(n):
    divcnt = 0
    for i in range(1,n+1): # [1,n]
        if n%i == 0:
            divcnt+=1

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# 24  [1,2,3,4,6,8,12,24]
from math import *

def fun1(n):
    # T.C = O(n)
    div1 = []
    for i in range(1,n+1): # [1,n]
        if n%i == 0:
            div1.append(i)
    return div1

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#include <SoftwareSerial.h> // Import Soft Uart library
#include <Servo.h>  // Import Servo library

// Bluetooth communication pins
#define TX 2 
#define RX 4

// L298N communication pins
#define IN1 3
#define IN2 5