### Python Program to Read a Number n and Compute n+nn+nnn

Problem Statement: Find the value of the sum of n+nn+nn. The user should be allowed to input n as per their discretion

Solution:
Step 1: Take a variable n, and ask the user to input a number that can be dynamically assigned to the variable n
Step 2: Compute the values of nn and nnn by assigning 2*n and 3*n to the variables value_nn and value_nnn respectively
Step 3: Compute the answer that will be printed by taking a sum of all three values
Step 4: Print the final Answer
`class ComputeN:    def getn(self):        n = int(input("Please enter a number: "))        nn = 2 * n        nnn = 3 * n            answer = n + m + l            print("The sum of ", n, "+", nn, "+", nnn, "is: ", answer)Compute = ComputeN()Compute.getn()def main():    if __name__ == '__main__':        main()`

Output:

/Users/sana2398/Desktop/Sana/CPPSecrets/venv/bin/python "/Users/sana2398/Desktop/Sana/CPPSecrets/Read n and compute n+nn+nnn.py"
`class ComputeN:    def getn(self):        n = int(input("Please enter a number: "))        nn = 2 * n        nnn = 3 * n            answer = n + m + l            print("The sum of ", n, "+", nn, "+", nnn, "is: ", answer)def main():    Compute = ComputeN()    Compute.getn()if __name__ == '__main__':    main()`