Merkkijono

mjono = input()
while True:
    samoja = 1
    kohta = 0
    if len(mjono) == 0:
        break
    for i in range(0, len(mjono), 1):
        if (i == (len(mjono) - 1)):
            break
        if (mjono[i]) != (mjono[i + 1]):
            continue
        if (mjono[i]) == (mjono[i + 1]):
            kohta = i
            break
    for x in range(1, 1001, 1):
        if (x + kohta == (len(mjono))):
            break 
        if (mjono[kohta] == (mjono[kohta + x])):
            samoja += 1
            continue
        else:
            break
    if samoja == 1:
        break
    mjono = (mjono[:(kohta)] + mjono[(kohta + samoja):])
print(mjono)

Test 1

Verdict: ACCEPTED

Test 2

Verdict: ACCEPTED

Test 3

Verdict: ACCEPTED

Test 4

Verdict: ACCEPTED

Test 5

Verdict: ACCEPTED

Test 6

Verdict: ACCEPTED

Test 7

Verdict: ACCEPTED

Test 8

Verdict: ACCEPTED

Test 9

Verdict: ACCEPTED

Test 10

Verdict: ACCEPTED