Buggy python submission (verdict: Runtime Error):
n,a,b,c,d=map(int,input().split())
s=input()
f=0;F=0
for i in range(a,max(c,d)-1):
  if s[i]=='#' and s[i+1]=='#':f=1
for i in range(b-2,d-1):
  if s[i]=='.' and s[i+1]=='.' and s[i+2]=='.':F=1
if F==0 and c>d:f=1
print('YNeos'[f::2])

Fixed submission:
n,a,b,c,d=map(int,input().split())
s=list(input())
if c<d:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
  if f==1:print('No')
  else:print('Yes')
else:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
  if f==0:
    if (s[d-2]=='#' or s[d]=='#') and (s[b-2]=='#' or s[b]=='#'):
      ct=0
      for i in range(b-1,d-2):
        if s[i]=='.' and s[i+1]=='.' and s[i+2]=='.':
          ct+=1
          break
      if ct==0:
        f=1
  if f==1:print('No')
  else:print('Yes')

Buggy python submission (verdict: Runtime Error):
n,a,b,c,d=map(int,input().split())
s=list(input())
f=0
for i in range(b,d-1):
  if s[i]=='#' and s[i+1]=='#':
    f=1
    break
for i in range(a,c-1):
  if s[i]=='#' and s[i+1]=='#':
    f=1
    break
if c>d:
  F=0
  for i in range(b-1,d):
    if s[i]=='.' and s[i+1]=='.' and s[i+2]=='.':
      F=1
      break
  if F==0:
    f=1
if f==1:print('No')
else:print('Yes')

Fixed submission:
n,a,b,c,d=map(int,input().split())
s=list(input())
if c<d:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
  if f==1:print('No')
  else:print('Yes')
else:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
  if f==0:
    if (s[d-2]=='#' or s[d]=='#') and (s[b-2]=='#' or s[b]=='#'):
      ct=0
      for i in range(b-1,d-2):
        if s[i]=='.' and s[i+1]=='.' and s[i+2]=='.':
          ct+=1
          break
      if ct==0:
        f=1
  if f==1:print('No')
  else:print('Yes')

Buggy python submission (verdict: Runtime Error):
n,a,b,c,d=map(int,input().split())
s=list(input())
if c<d:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f==1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
  if f==1:print('No')
  else:print('Yes')
else:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==1:
    print('No')
  else:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
    if f==1:
      print('No')
    else:
      if s[d-2]=='#' or s[d]=='#':
        ct=0
        for i in range(b,d-2):
          if s[i]=='.' and s[i+1]=='.' and s[i+2]=='.':
            ct=1
            break
        if ct==0:
          if s[b-2]=='#' or s[b]=='#':
          print('No')
        else:
          print('Yes')
      else:
        print('Yes')

Fixed submission:
n,a,b,c,d=map(int,input().split())
s=list(input())
if c<d:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
  if f==1:print('No')
  else:print('Yes')
else:
  f=0
  for i in range(b,d-1):
    if s[i]=='#' and s[i+1]=='#':
      f=1
      break
  if f==0:
    for i in range(a,c-1):
      if s[i]=='#' and s[i+1]=='#':
        f=1
        break
  if f==0:
    if (s[d-2]=='#' or s[d]=='#') and (s[b-2]=='#' or s[b]=='#'):
      ct=0
      for i in range(b-1,d-2):
        if s[i]=='.' and s[i+1]=='.' and s[i+2]=='.':
          ct+=1
          break
      if ct==0:
        f=1
  if f==1:print('No')
  else:print('Yes')