Buggy python submission (verdict: Time Limit Exceeded):
n, k, c = map(int, input().split())
s = input()
s2 = s
s += "x"*c
s2 = "x"*c+s2
k2 = k
left = []
i = 0
while i < n:
  if k == 0:
    break
  if s[i] == "o":
    left.append(i+1)
    s = "x"*(i+c+1)+s[i+c+1:]
    #print(s)
    k -= 1
    i += c
  i += 1

right = []
i = len(s2)-1
while i >= 0:
  if k2 == 0:
    break
  if s2[i] == "o":
    right.append(i+1-c)
    s2 = s2[:i-c]+"x"*(len(s2)-i+c)
    #print(s2)
    k2 -= 1
    i -= c
  i -= 1
#print(left, right)
 
ans = sorted(list(set(left) & set(right)))
for i in ans:
  print(i)

Fixed submission:
n, k, c = map(int, input().split())
s = input()
s2 = s
s += "x"*c
s2 = "x"*c+s2
k2 = k
kans = k
left = []
i = 0
while i < n:
  if s[i] == "o":
    left.append(i+1)
    i += c
  i += 1

right = []
i = len(s2)-1
while i >= c:
  if k2 == 0:
    break
  if s2[i] == "o":
    right.append(i+1-c)
    k2 -= 1
    i -= c
  i -= 1
if len(left) == kans:
  ans = sorted(list(set(left) & set(right)))
  for i in ans:
    print(i)
else:
  exit()

Buggy python submission (verdict: Runtime Error):
def muri(k, c, s):
  if k > s.count("o"):
    return True
  for j in range(len(s)):
    if s[j] == "o":
      return muri(k-1, c, s[j+c+1:])
  return False

n, k, c = map(int, input().split())
s = input()
s += "x"*c

for i in range(len(s)):
  if s[i] == "o":
    if muri(k, c, s[:i]+"x"+s[i+1:]):
      print(i+1)

Fixed submission:
n, k, c = map(int, input().split())
s = input()
s2 = s
s += "x"*c
s2 = "x"*c+s2
k2 = k
kans = k
left = []
i = 0
while i < n:
  if s[i] == "o":
    left.append(i+1)
    i += c
  i += 1

right = []
i = len(s2)-1
while i >= c:
  if k2 == 0:
    break
  if s2[i] == "o":
    right.append(i+1-c)
    k2 -= 1
    i -= c
  i -= 1
if len(left) == kans:
  ans = sorted(list(set(left) & set(right)))
  for i in ans:
    print(i)
else:
  exit()

Buggy python submission (verdict: Time Limit Exceeded):
def muri(k, c, s):
  if k > s.count("o"):
    return True
  for j in range(len(s)):
    if s[j] == "o":
      return muri(k-1, c, s[j+c+1:])
  return False

n, k, c = map(int, input().split())
s = input()
s += "x"*c

for i in range(len(s)):
  if s[i] == "o":
    if muri(k, c, s[:i]+"x"+s[i+1:]):
      print(i+1)

Fixed submission:
n, k, c = map(int, input().split())
s = input()
s2 = s
s += "x"*c
s2 = "x"*c+s2
k2 = k
kans = k
left = []
i = 0
while i < n:
  if s[i] == "o":
    left.append(i+1)
    i += c
  i += 1

right = []
i = len(s2)-1
while i >= c:
  if k2 == 0:
    break
  if s2[i] == "o":
    right.append(i+1-c)
    k2 -= 1
    i -= c
  i -= 1
if len(left) == kans:
  ans = sorted(list(set(left) & set(right)))
  for i in ans:
    print(i)
else:
  exit()

Buggy python submission (verdict: Runtime Error):
def muri(k, c, s):
  for j in range(len(s)):
    if s[j] == "o":
      return muri(k-1, c, s[j+c+1:])
    elif j == len(s) -1 and k > 0:
      return True
  return False

n, k, c = map(int, input().split())
s = input()
s += "x"*c

for i in range(len(s)):
  if s[i] == "o":
    if muri(k, c, s[:i]+"x"+s[i+1:]):
      print(i+1)

Fixed submission:
n, k, c = map(int, input().split())
s = input()
s2 = s
s += "x"*c
s2 = "x"*c+s2
k2 = k
kans = k
left = []
i = 0
while i < n:
  if s[i] == "o":
    left.append(i+1)
    i += c
  i += 1

right = []
i = len(s2)-1
while i >= c:
  if k2 == 0:
    break
  if s2[i] == "o":
    right.append(i+1-c)
    k2 -= 1
    i -= c
  i -= 1
if len(left) == kans:
  ans = sorted(list(set(left) & set(right)))
  for i in ans:
    print(i)
else:
  exit()