Lecture Notes on 24 Oct 2012

def sub_string (s):
  length = len (s)
  for size in range (length, 0, -1):
    startIdx = 0
    endIdx = startIdx + size
    while (endIdx <= length):
      print (s[startIdx : endIdx])
      startIdx = startIdx + 1
      endIdx = startIdx + size

def main():
  sub_string ("ABCDE")

main()