# question ,  adding 1,2,3,5,6,7,8,9,10
sum = 0
i = 1

while i <= 10:
    if i != 4:
        sum = sum + i
    i += 1

print("The answer is {}.".format(sum))



# sum = 0
# i = 1
# while i <= 10 and i != 4:
#     sum = sum + i
#     i += 1
#
# print("The answer is {}.".format(sum))

# i += 1
#
# while i <= 10:
#     sum = sum + i
#     i += 1
# print("The answer is {}.".format(sum))
