Ositus

string = input()
n = len(string)-1

viivat = [0 for i in range(n)]
tavat = []

def line(n, viivat, tavat):
    for i in range(2):
        viivat[n] = i
        if viivat not in tavat:
            tavat.append(viivat.copy())
        if n > 0:
            line(n-1, viivat, tavat)

def main():
    if n > 0:
        line(n-1, viivat, tavat)
    else:
        print(1)
        return
    total = 0
    for item in tavat:
        cut = 0
        result = []
        for i in range(len(item)):
            if item[i] == 1:
                result.append(string[cut:i+1])
                cut = i+1
        result.append(string[cut:])

        status = True
        for partition in result:
            for ch in partition:
                if partition.count(ch) > 1:
                    status = False
                    break
        if status == True:
            total += 1

    print(total % 1000000007)
    return

main()

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

Traceback (most recent call last):
  File "input/code.py", line 43, in <module>
    main()...

Test 7

Group: 3

Verdict: TIME LIMIT EXCEEDED