print('welcome to python.hub Bank ATM')
restart=('Y')
chances=3
balances=999.12
while chances>= 0:
    pin = int(input('please Enter  your 4 Digit PIN: '))
    if pin == (8586):
        print('Youhave entered the pin correctly')
        print('please press 1 for your balance')
        print('please press 2 to make a withdrawl')
        print('please press 3 to pay in')
        print('please press 4 to return card\n')
        while restart not in ('n','NO','no','N'):
           print('please press 1 For your balance')
           print('please press 2 to make a withdrawl')
           print('please press 3 to pay in')
           print('please press 4 to return card')
           option = int(input('what would you like to choose?:'))
           if option == 1:
               print('Thank you')
               break
           elif option == 1:
               print(' your balance is usd',balance)
               restart = input('Would you like to choose?: ')
               if option == 1:
                   print('your balance is usd',balance)
                   restart = input('would you like to go back? ')
                   if restart in('n','NO','no','N'):
                       print('Thank You')
                       break
                   elif option == 2:
                        option2 = ('y')
                    withdrawl = float(input('how Much would you like to withdraw? 0,20,40,80,100 for other enter 1:'))
                    if  withdrawl in [10,20,40,60,80,100]:
                      balance = balance - withdrawl
                            print('\nYour balance is now usd',balance)
                            restart = input('would you like to go back?')
                            if restart in ('n','NO','no','N')
                            print('thank you')
                            break
                        elif withdrawl != [10,20,40,60,80,100]:
                            print('Invalid amount, olease re-try\n')
                            restart = ('y')
                        elif withdrawl == 1:
                            withdrawl = float(input('please enter the desired amount:'))

                 elif option == 3:
                     pay_in = float(input('how much would you like to pay in? '))
                     balance = balance + pay_in
                     print('\nyourbalance is now usd', balance)
                     restart = input('Would you lik to go back? ')
                     if restart in ('n','NO''no','N'):
                         print('Thank you')
                         break
                elif option == 4:
                    print('please wait while whlist your card is returned...\n')
                    print('thank you for your service')
                    break
                else:
                    print('please enter a correct number. \n')
                    restart = ('y')
      elif pin != ('8586'):
          print('Incorrect pin')
          chances = chances - 1
          if chances == 0:
              print('\nNo more tries')
              break