Merkkijono

userInput = input()
userList = []
finalString = ""

for x in range(0, len(userInput)):
    userList.append(userInput[x])

if userList[0] != userList[1]:
    finalString += userList[0]

if userList[len(userList)-2] != userList[len(userList)-1]:
    finalString += userList[len(userList)-1]


for z in range(1, len(userList)-2):
    if userList[z] != userList[z-1] and userList[z] != userList[z+1]:
        #print("z-1 on", userList[z-1], " z on ", userList[z], "z+1 on", userList[z+1])
        finalString += userList[z]


print(finalString)

Test 1

Verdict: WRONG ANSWER

Test 2

Verdict: ACCEPTED

Test 3

Verdict: WRONG ANSWER

Test 4

Verdict: WRONG ANSWER

Test 5

Verdict: WRONG ANSWER

Test 6

Verdict: WRONG ANSWER

Test 7

Verdict: WRONG ANSWER

Test 8

Verdict: WRONG ANSWER

Test 9

Verdict: WRONG ANSWER

Test 10

Verdict: WRONG ANSWER