**Python n nn nnn nnnn:** In the previous article, we have discussed about Program to Clear the Rightmost Set Bit of a Number in C++ and Python. Let us learn Program to Read a Number n and Compute n+nn+nnn in C++ Program and Python.

Given a number n , the task is to calculate the value of n+ nn +nnn in C++ and Python.

**Examples:**

**Example1:**

**Input:**

given number = 8

**Output:**

The value of 8 + 88 + 888 = 984

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**Example2:**

**Input:**

given number = 4

**Output:**

Enter any random number = 4 The value of 4 + 44 + 444 = 492

**Example3:**

**Input:**

given number = 9

**Output:**

The value of 9 + 99 + 999 = 1107

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

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There are several ways to calculate the value of n + nn + nnn in C++ and python some of them are:

- Using String Concatenation (Static Input) in Python
- Using String Concatenation (User Input) in Python
- Using String Concatenation (Static Input) in C++

Drive into Python Programming Examples and explore more instances related to python concepts so that you can become proficient in generating programs in Python Programming Language.

### Method #1:Using String Concatenation (Static Input) in Python

**Approach:**

- Give the input number as static.
- Convert the number to a string and save it in a different variable.
- Add the string twice to concatenate it and store it in another variable.
- Then multiply the string by three and assign the result to the third variable.
- Convert the second and third variables’ strings to integers.
- Add the values from all the integers together.
- Print the expression’s total value.
- Exit of program

**Below is the implementation:**

# given number numb numb = 8 # converting the given number to string strnum = str(numb) # Add the string twice to concatenate it and store it in another variable. strnum1 = strnum+strnum # Add the string thrice to concatenate it and store it in another variable. strnum2 = strnum+strnum+strnum # converting the strnum1 and strnum2 from string to integer using int() function intnum1 = int(strnum1) intnum2 = int(strnum2) # Calculating the result value resultVal = numb+intnum1+intnum2 print("The value of", strnum, "+", strnum1, "+", strnum2, "=", resultVal)

**Output:**

The value of 8 + 88 + 888 = 984

### Method #2:Using String Concatenation (User Input) in Python

**Approach:**

- Scan the given number and store it in the numb variable.
- Convert the number to a string and save it in a different variable.
- Add the string twice to concatenate it and store it in another variable.
- Add the string thrice to concatenate it and store it in another variable.
- Convert the second and third variables strings to integers.
- Add the values from all the integers together.
- Print the expression’s total value.
- Exit of program

**Below is the implementation:**

# Scan the give number numb = int(input("Enter any random number = ")) # converting the given number to string strnum = str(numb) # Add the string twice to concatenate it and store it in another variable. strnum1 = strnum+strnum # Add the string thrice to concatenate it and store it in another variable. strnum2 = strnum+strnum+strnum # converting the strnum1 and strnum2 from string to integer using int() function intnum1 = int(strnum1) intnum2 = int(strnum2) # Calculating the result value resultVal = numb+intnum1+intnum2 print("The value of", strnum, "+", strnum1, "+", strnum2, "=", resultVal)

**Output:**

Enter any random number = 4 The value of 4 + 44 + 444 = 492

### Method #3:Using String Concatenation (Static Input) in C++

**Approach:**

- Give the input number as static.
- Convert the number to a string using
**to_string()**function in C++ and save it in a different variable. - Add the string twice to concatenate it and store it in another variable.
- Add the string thrice to concatenate it and store it in another variable.
- Convert the second and third variables strings to integers using
**s****toi()**function. - Add the values from all the integers together.
- Print the expression’s total value.
- Exit of program

**Below is the implementation:**

#include <bits/stdc++.h> using namespace std; int main() { // given number numb int numb = 9; // converting the given number to string string strnum = to_string(numb); // Add the string twice to concatenate it and store it // in another variable. string strnum1 = strnum + strnum; // Add the string thrice to concatenate it and store it // in another variable. string strnum2 = strnum + strnum + strnum; // converting the strnum1 and strnum2 from string to // integer using stoi() function int intnum1 = stoi(strnum1); int intnum2 = stoi(strnum2); // Calculating the result value int resultVal = numb + intnum1 + intnum2; cout << "The value of " << strnum << " + " << strnum1 << " + " << strnum2 << " = " << resultVal; return 0; }

**Output:**

The value of 9 + 99 + 999 = 1107

**Answer yourself:**

- Read a number n and compute nnnnnn in python?
- Input an integer n and computes the value of nnnnnn?
- nnnnnnnn1000 n?
- How to print nnnnnn in python?
- Input an integer (n and computes the value of n+nn+nnn)?
- nnn+nn+n+n+n=1000 n=?
- How to print n+nn+nnn in python?
- Read a number n and compute n+nn+nnn in python?
- Calculate n + nn + nnn + … + n(n times) in c++?

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