import _locale

# set locale for use in currency formatting

result = _locale.setlocale(_locale.LC_ALL, '')

if result == 'C':

_locale.setlocale(_locale.LC_ALL, 'en_US')

print("Welcome to future value calculator")

print()

choice = "y"

while choice.lower() == "y":

mon_inv = float(input("Enter monthly investment: \t"))

yr_int_rate = float(input("Enter yearly interest rate: \t"))

years = int(input("Enter Number of Years: \t"))

# convert yearly values to monthly values

mon_int_rate= yr_int_rate / 12 /100

months = years * 12

# calculate

future_value = 0

for i in range(months):

future_value = future_value + mon_inv

mon_int_amount = future_value * mon_int_rate

future_value = future_value + mon_int_amount

print("Future value : \t\t\t" , int(future_value))

print()

# continue ?

choice= input("Continue ? (y/n): ")

print()

print("Bye!!!")