Buggy python submission (verdict: Time Limit Exceeded):
# input
N, K, C = map(int, input().split())
S = input()

# process
# daysL = [0]*(N+1)
# daysR = [0]*(N+1)
daysL = [0]
daysR = [0]
tL = 1
tR = K
for i in range(N):
    if S[i] == 'o' and sum(daysL[max(0,i-C+1):]) == 0:
        daysL.append(tL)
        tL += 1
    else:
        daysL.append(0)

    if S[N-i-1] == 'o' and sum(daysR[max(0,i-C+1):]) == 0:
        daysR.append(tR)
        tR -= 1
    else:
        daysR.append(0)

# output
# print(daysL)
# print(daysR)
if tL == K+1:    
    for i in range(N):
        if daysL[i+1] > 0 and daysL[i+1] == daysR[N-i]:
            print(i+1)


Fixed submission:
# input
N, K, C = map(int, input().split())
S = input()

# process
l = [i+1 for i in range(N) if S[i] == 'o']
left = [l[0]]
right = [l[-1]]
for i in range(1, len(l)):
    if l[i] > left[-1]+C:
        left.append(l[i])
    if l[-i-1] < right[-1]-C:
        right.append(l[-i-1])

# output
# print(l)
# print(left)
# print(right)
if len(left) == K:
    for i in range(len(left)):
        if left[i] == right[-i-1]:
            print(left[i])

Buggy python submission (verdict: Time Limit Exceeded):
# input
N, K, C = map(int, input().split())
S = input()

# process
daysL = [0]*(N+1)
daysR = [0]*(N+1)
tR = 1
tL = K
for i in range(N):
    if S[i] == 'o' and sum(daysL[max(0,i-C+1):i+1]) == 0:
        daysL[i+1] = tR
        tR += 1
    else:
        daysL[i+1] = 0

    j = N-i
    if S[j-1] == 'o' and sum(daysR[j:min(N+1,j+C)]) == 0:
        daysR[j-1] = tL
        tL -= 1
    else:
        daysR[j-1] = 0

# output
# print(daysL)
# print(daysR)
if max(daysL) == K:    
    for i in range(N):
        if S[i] == 'o' and daysL[i+1] != 0 and daysL[i+1] == daysR[i]:
            print(i+1)


Fixed submission:
# input
N, K, C = map(int, input().split())
S = input()

# process
l = [i+1 for i in range(N) if S[i] == 'o']
left = [l[0]]
right = [l[-1]]
for i in range(1, len(l)):
    if l[i] > left[-1]+C:
        left.append(l[i])
    if l[-i-1] < right[-1]-C:
        right.append(l[-i-1])

# output
# print(l)
# print(left)
# print(right)
if len(left) == K:
    for i in range(len(left)):
        if left[i] == right[-i-1]:
            print(left[i])

Buggy python submission (verdict: Time Limit Exceeded):
# input
N, K, C = map(int, input().split())
S = input()

# process
def isZero(l):
    return l.count(0) == len(l)

daysL = [0]*(N+1)
daysR = [0]*(N+1)
tR = 1
tL = K
for i in range(N):
    if S[i] == 'o' and isZero(daysL[max(0,i-C+1):i+1]):
        daysL[i+1] = tR
        tR += 1
    else:
        daysL[i+1] = 0

    j = N-i
    if S[j-1] == 'o' and isZero(daysR[j:min(N+1,j+C)]):
        daysR[j-1] = tL
        tL -= 1
    else:
        daysR[j-1] = 0

# output
# print(daysL)
# print(daysR)
if max(daysL) == K:    
    for i in range(N):
        if S[i] == 'o' and daysL[i+1] != 0 and daysL[i+1] == daysR[i]:
            print(i+1)


Fixed submission:
# input
N, K, C = map(int, input().split())
S = input()

# process
l = [i+1 for i in range(N) if S[i] == 'o']
left = [l[0]]
right = [l[-1]]
for i in range(1, len(l)):
    if l[i] > left[-1]+C:
        left.append(l[i])
    if l[-i-1] < right[-1]-C:
        right.append(l[-i-1])

# output
# print(l)
# print(left)
# print(right)
if len(left) == K:
    for i in range(len(left)):
        if left[i] == right[-i-1]:
            print(left[i])

Buggy python submission (verdict: Time Limit Exceeded):
# input
N, K, C = map(int, input().split())
S = input()

# process/output
def isZero(l):
    return l.count(0) == len(l)

daysL = [0]*(N+1)
t = 1
for i in range(N):
    if S[i] == 'o' and isZero(daysL[max(0,i-C+1):i+1]):
        daysL[i+1] = t
        t += 1
    else:
        daysL[i+1] = 0
# print(daysL)

if max(daysL) == K:
    daysR = [0]*(N+1)
    t = K
    for i in reversed(range(1,N+1)):
        if S[i-1] == 'o' and isZero(daysR[i:min(N+1,i+C)]):
            daysR[i-1] = t
            t -= 1
        else:
            daysR[i-1] = 0
    
    # print(daysR)
    for i in range(N):
        if S[i] == 'o' and daysL[i+1] != 0 and daysL[i+1] == daysR[i]:
            print(i+1)


Fixed submission:
# input
N, K, C = map(int, input().split())
S = input()

# process
l = [i+1 for i in range(N) if S[i] == 'o']
left = [l[0]]
right = [l[-1]]
for i in range(1, len(l)):
    if l[i] > left[-1]+C:
        left.append(l[i])
    if l[-i-1] < right[-1]-C:
        right.append(l[-i-1])

# output
# print(l)
# print(left)
# print(right)
if len(left) == K:
    for i in range(len(left)):
        if left[i] == right[-i-1]:
            print(left[i])

Buggy python submission (verdict: Time Limit Exceeded):
# input
N, K, C = map(int, input().split())
S = input()

# process/output
def eq(l):
    return l.count(l[0]) == len(l)

days = [0]*(N+1)

for i in range(N):
    if i+1 < N and S[i] == 'x':
        days[i+1] = days[i]
    else:
        if eq(days[max(0,i-C):i+1]):
            days[i+1] = days[i]+1
        else:
            days[i+1] = days[i]

if max(days) <= K:
    for i in range(N):
        if S[i] == 'x':
            days[i+1] = 0

    k = max(days)
    i = N
    if days[i] != k:
        i -= 1
    while k > 0:
        for j in range(max(1, i-C), i):
            if days[j] != k:
                days[j] = 0

        while days[i] in (0, k):
            i -= 1
            if i == 0:
                break

        k = days[i]
        
    # print(days)
    for k in range(1, K+1):
        if days.count(k)==1:
            print(days.index(k))


Fixed submission:
# input
N, K, C = map(int, input().split())
S = input()

# process
l = [i+1 for i in range(N) if S[i] == 'o']
left = [l[0]]
right = [l[-1]]
for i in range(1, len(l)):
    if l[i] > left[-1]+C:
        left.append(l[i])
    if l[-i-1] < right[-1]-C:
        right.append(l[-i-1])

# output
# print(l)
# print(left)
# print(right)
if len(left) == K:
    for i in range(len(left)):
        if left[i] == right[-i-1]:
            print(left[i])