balance=int(raw_input('enter balance: '))
annualInterestRate=float(raw_input('enter annual interest rate: '))

monthlyInterestRate=annualInterestRate/12

lowestPayment=int(round((balance/120),0)*10)

while (lowestPayment*12)<((balance)*(1+annualInterestRate)):
    month=1
    newBalance=balance
    for month in range(0,12):
        newBalance=((newBalance-lowestPayment)*(1+monthlyInterestRate))
        month=month+1
    if newBalance<=0:
        print('Lowest Payment: ' + str(lowestPayment))
        break
    else:
        lowestPayment=lowestPayment+10