Help with try, except, else finally

[Pytho13]

No, they're not.
Should I move them to surround the try block? and take them off where they are now?

Please see below?

#User inputs math type
operation = input('''
Please type in the math operation you would like to complete:
+ for addition
* for multiplication
''')
#User inputs number
try:
number_1 = int(input('Enter your first number: '))
except Exception:
print: ("You have not input a number")

try:
number_2 = int(input('Enter your second number: '))
except Exception:
print: ("You have not input a number")

#If user chooses addition
if operation == '+':
print('{} + {} = '.format(number_1, number_2))
print(number_1 + number_2)


#if user chooses multiplication
if operation == '*':
print('{} * {} = '.format(number_1, number_2))
print(number_1 * number_2)