Problem: Glin was doing his maths homework , Rick came to his house. As Glin is week at Maths, Rick decided to help him in his homework. They both stuck at a problem of Right Angle Triangle. You have to help them both in this problem.

Input is a String, You have to process it and design a Right angle triangle as explained later.

Input: Input is a String of characters, The right angle triangle is designed as explained through sample example.

Output: Print 1 character in firstline, then 2 characters in next line and so on, to design a Right Angle Triangle like Structure.

Constraints: Lenght of input String <= 20

Sample Input: Dcoder

Sample Output: 

D

Dc

Dco

Dcod

Dcode

Dcoder

s = input()
[print(s[:i+1]) for i in range(len(s))]