def main():
    totalMoney = 1000
    quantity = 3
    price = 450

    print('==Exercise 4==')
    print('I have {0} dollars so I can buy {1} football for {2:.2f} dollars.'.format(totalMoney,quantity,price))
    print('==End Of Ex4==')
    return 0

if __name__ == '__main__':
    main()