mystery$\_$string $=$ "Lucy"

#You may modify the lines of code above, but don't move them!

#When you Submit your code, we'll change these lines to

#assign different values to the variables.

#There's an easy way to do this exercise, and a hard way. For

#a hint on the easier way, revisit the sample answers for the

#previous coding exercise.

#

#Above we've created a variable called mystery$\_$string. Write

#some code that will print the first letter of the string on

#the first line, the first two letters on the second line,

#the first three letters on the third line, etc., until it

#prints the entire string on the last line.

#

#For example, if the string was "Lucy", then the output would

#be:

#

#L

#Lu

#Luc

#Lucy

#

#Hint: to print without automatically starting a new line,

#include the text end$=""$ inside the print statement's

#parentheses. For example, print$("$Hello$",$ end$="")$ will print

#the word "Hello" without starting a new line afterward. So$,$

#calling it twice would print "HelloHello" on one line

#instead of two lines.

#Add your code here!