Takes two numbers as input (abc and xyz) and returns the sum of their reversed form (cba + zyx)

reversedsum.py

#!/usr/bin/python
print("This is a calculator that takes two numbers of same lenght as input, reverses them and returns the sum")
print("Press Ctrl+C to exit the calculator")
try:
    while True:
        print("Enter a number:")
        first = input()
        for a in first:
            try:
                int(a)
            except ValueError:
                print "Please enter only without any other character"
                break
        first = [int(i) for i in str(first)]
        print("Enter anohter number of same length:")
        
        second = input()
        for a in second:
            try:
                int(a)
            except ValueError:
                print("Please enter only without any other character")
                break
        second = [int(i) for i in str(second)]
        
        if len(first) == len(second):
            first.reverse() #reversed the list of numbers
            first = [str(i) for i in first] #converted all numbers to string
            first = "".join(first) # joined the reversed string
            first = int(first) # turned into number for calculation
            
            second.reverse()
            second = [str(i) for i in second]
            second = "".join(second)
            second = int(second)
            
            result = first + second
            
            print("\nHere is your reversed calculation:\n")
            print("\t\t" + str(first))
            print("\t\t" + str(second))
            print("---------------------------")
            print("\t\t" + str(result))
            
        else:
            print("Please input both the number with same length")
except KeyboardInterrupt:
    print("You have exited the 'reversed calculator'")