Ositus

def getAllPartitions(s):
  combinations = []

  for i in range(1, len(s)):
    a, b = s[: i], s[i:]
    if(not len(a) == len(set(a))): continue
    if(len(b) == len(set(b))):
      combinations.append([a, b])

    for c in getSubPartitions(b):
      if(not len(c) == len(set(c))): continue
      combinations.append([a, c])
  
  return combinations

def getSubPartitions(s):
  for i in range(1, len(s)):
    a, b = s[: i], s[i:]
    if(not len(a) == len(set(a))): continue
    if(len(b) == len(set(b))):
      yield(a, b)
    for c in getSubPartitions(b):
      if(not len(c) == len(set(c))): continue
      yield(a, c)


def main():
  s = input()
  l = getAllPartitions(s)
  print(int(len(l)%(pow(10, 9)+7)))

if __name__ == "__main__":
  main()

Test 1

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 2

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: WRONG ANSWER

Test 5

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 6

Group: 3

Verdict: RUNTIME ERROR

Traceback (most recent call last):
  File "input/code.py", line 33, in <module>
    main()...

Test 7

Group: 3

Verdict: TIME LIMIT EXCEEDED