in PYthon

Write a program that outputs all substrings of an input, all lengths and start witlh all possible starting characters e.g., ABAC - A, B, A, C, AB, BA, AC, ABA, BAC, ABAC - Print each character alone with a comma followed by a space in between the substrings. Do this for all the characters in the string Print each pair of characters in the string in the same manner. Start with the first two, then the second and third character. Continue until you reach the end of the string Print each trio of characters in the string in the same manner. Start with the first set, the next set starts with the second character. Continue until you reach the end of the string Add one to the size of the substring each time you finish finding all the substrings - The last one should be the entire string. - If there are spaces in your string, do not remove them, they are characters