def bank():
    balance = float(input("Input credit card balance: "))
    apr_interest = float(input("Input APR on the card: "))
    print("Assuming a minimum payment of 2% of balance ($20 min) Your minimum payment would be 20.00")
    mon_selection = input('Use minimum monthly payment?: ')
    while mon_selection != 'n' and mon_selection != 'y':
        mon_selection = input('Enter selection: ')
    mon_repay = 0
    if mon_selection == 'n':
        mon_repay = int(input('Enter monthly repay ammount: '))
    if mon_selection == 'y':
        mon_repay = 20
    num = 0
    interest = 0
    interest1 = 0
    final = 0
    while (balance >= mon_repay):
        interest = (balance * apr_interest)/1200
        balance = (balance - mon_repay) + interest
        interest1 = interest1 + interest
        num = num + 1
        print('Balance          ','Interest paid          ', 'Payment number          ')
        print('{:>7}'.format(round(balance, 2)),('{:>17}'.format(round(interest, 2))),('{:>25}'.format(num)))
bank()
recalc = input("Recalculate with different year?")
while recalc != 'n' and recalc != 'y':
    recalc = input("Recalculate with different year?")
    if recalc == 'y':
        bank()