"""
Write a function changeString that has one parameter - string. 
The function creates and returns a new string after omitting all digits, 
and replacing all lower case chars with corresponding upper case and vice versa. 
The rest of the 
characters remains without change.

For example: string Ya$n123$ will become yA$N$

Write main that generates a list of 10 strings from user input. 
The program creates new list - each string in the original list 
will be changed using function changeString. The program prints the list of new strings. """
import random
def changeString(str):
	new_str=""
	for item in str:
		if(item.isdigit()==False):
			new_str=new_str+item.swapcase()
	return new_str
def random_string(str_size, min, max): #this function creates ONE random string of size: str_size
	str=""
	for i in range(str_size):
		num=random.randint(min,max)
		char=(chr)(num)
		str+=char
	return str

def make_random_list(list_size, char_min, char_max, strsize_min, strsize_max):
	list=[]
	for i in range(list_size):
		str_size=random.randint(strsize_min,strsize_max)
		str=random_string(str_size, char_min,char_max)
		list.append(str)
	return list
def main():
	list=make_random_list(10,32, 126,5,10)
	print(list)
	new_list=[]
	for i in range(10):
		new_list.append(changeString(list[i]))
	print(new_list)
main()