balance = 3926
annualInterestRate = 0.2
MP = 10

for month in range (0,12):
    while balance >= 0:
        remaining = balance
        monthlyInterestRate = (annualInterestRate)/12
        balance = (remaining - MP) * (1 + monthlyInterestRate)
        if remaining < 0:
            break
        else:
            MP += 10

print 'Lowest Payment: ', +round(MP)