Help me in solving BMC03 problem

My issue

why * is used in print statement

My code

# Update the '_' in the code below to solve the problem

t = int(input())
for i in range(t):
    #declare N as a string instead of an integer
    N = str(input())        
    #list to hold all digits of the number
    final_ans =[]      
    #useful string syntax
    for i in N:             

Learning course: Beginner DSA in Python
Problem Link: CodeChef: Practical coding for everyone

It is used to print the whole array.
U can also do it using loop .