Answer to Question #229884 in Python for kaavya

Question

Sum of 1 series

Given integer N as input. Write a program to print the sum of series 1 + 11 + 111 + .... N terms.

Input

The first line of input is an integer N.

Output

The output should be an integer representing the sum of series.

Explanation

Given

N = 4The sum for first

4 terms is 1 + 11 + 111 + 1111So the output should be

1234.

Sample Input 1

4

Sample Output 1

1234

Sample Input 2

5

Sample Output 2

12345

Answer 1

n = int(input())


count = 0
line =''


for i in range(n):
    line += "1"
    count += int(line)


print(count)