Ositus

from itertools import chain, combinations

maara = 0
sallittu = True

def sliceable(xs):
	try:
		xs[:0]
		return xs
	except TypeError:
		return tuple(xs)

def partition(iterable):
	s = sliceable(iterable)
	n = len(s)
	b, mid, e = [0], list(range(1, n)), [n]
	getslice = s.__getitem__
	splits = (d for i in range(n) for d in combinations(mid, i))
	return [[s[sl] for sl in map(slice, chain(b, d), chain(d, e))]
			for d in splits]

if __name__ == '__main__':
	s = input()
	for i in partition(s):
		sallittu = True
		for q in range (len(i)):
			if len("".join(set((i[q])))) != len(i[q]):
				sallittu = False
		if (sallittu):
			maara += 1
print(maara)

Test 1

Group: 1, 2, 3

Verdict: ACCEPTED

Test 2

Group: 1, 2, 3

Verdict: ACCEPTED

Test 3

Group: 1, 2, 3

Verdict: ACCEPTED

Test 4

Group: 1, 2, 3

Verdict: ACCEPTED

Test 5

Group: 2, 3

Verdict: TIME LIMIT EXCEEDED

Test 6

Group: 3

Verdict: RUNTIME ERROR

Test 7

Group: 3

Verdict: RUNTIME ERROR