interest_per_year = 0.09 # 9 percents per year
# transform interest per year to interest per month
interest_per_month = (interest_per_year + 1) ** (1/12) - 1
print(interest_per_month)
money = 0
for month in range(12*5): # for each of 12 months in each of 5 years
money = money + 20000 # you add 50 dollars each month
money = money * (interest_per_month + 1)
print(money)
aW50ZXJlc3RfcGVyX3llYXIgPSAwLjA5ICMgOSBwZXJjZW50cyBwZXIgeWVhcgoKIyB0cmFuc2Zvcm0gaW50ZXJlc3QgcGVyIHllYXIgdG8gaW50ZXJlc3QgcGVyIG1vbnRoCmludGVyZXN0X3Blcl9tb250aCA9IChpbnRlcmVzdF9wZXJfeWVhciArIDEpICoqICgxLzEyKSAtIDEKcHJpbnQoaW50ZXJlc3RfcGVyX21vbnRoKQptb25leSA9IDAKCmZvciBtb250aCBpbiByYW5nZSgxMio1KTogIyBmb3IgZWFjaCBvZiAxMiBtb250aHMgaW4gZWFjaCBvZiA1IHllYXJzCgltb25leSA9IG1vbmV5ICsgMjAwMDAgIyB5b3UgYWRkIDUwIGRvbGxhcnMgZWFjaCBtb250aAoJbW9uZXkgPSBtb25leSAqIChpbnRlcmVzdF9wZXJfbW9udGggKyAxKQoJCnByaW50KG1vbmV5KQ==