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


Fixed submission:
n, a, b, c, d = map(int, input().split())
s = input()
if '##' in s[a-1:c] or '##' in s[b-1:d]:
    print('No')
elif c < d:
    print('Yes')
else:
    if '...' in s[b-2:d+1]:
        print('Yes')
    else:
        print('No')

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


Fixed submission:
n, a, b, c, d = map(int, input().split())
s = input()
if '##' in s[a-1:c] or '##' in s[b-1:d]:
    print('No')
elif c < d:
    print('Yes')
else:
    if '...' in s[b-2:d+1]:
        print('Yes')
    else:
        print('No')

Buggy python submission (verdict: Time Limit Exceeded):
n, a, b, c, d = map(int, input().split())
s = list(input())
for i in range(b, d - 1):
    if s[i] == '#' and s[i + 1] == '#':
        print('No')
        exit(0)
    for i in range(a, c - 1):
        if s[i] == '#' and s[i + 1] == '#':
            print('No')
            exit(0)
if (a < b and c < d) or (b < a and d < c):
    print('Yes')
else:
    if a < b:
        l, r = a - 1, a
    else:
        l, r = b - 1, b
    while l >= 0 and (s[l] != '#' or s[l + 1] != '#'):
        l -= 1
    l += 2 - int(l == -1)
    while r < n and (s[r - 1] != '#' or s[r] != '#'):
        r += 1
    r -= 2 - int(r == n)
    for i in range(l, r - 1):
        if s[i] == '.' and s[i + 1] == '.' and s[i + 2] == '.':
            print('Yes')
            break
    else:
        print('No')


Fixed submission:
n, a, b, c, d = map(int, input().split())
s = input()
if '##' in s[a-1:c] or '##' in s[b-1:d]:
    print('No')
elif c < d:
    print('Yes')
else:
    if '...' in s[b-2:d+1]:
        print('Yes')
    else:
        print('No')

Buggy python submission (verdict: Time Limit Exceeded):
n, a, b, c, d = map(int, input().split())
s = list(input())
for i in range(b, d - 1):
    if s[i] == '#' and s[i + 1] == '#':
        print('No')
        exit(0)
    for i in range(a, c - 1):
        if s[i] == '#' and s[i + 1] == '#':
            print('No')
            exit(0)
if (a < b and c < d) or (b < a and d < c):
    print('Yes')
else:
    if a < b:
        l, r = a - 1, a
    else:
        l, r = b - 1, b
    while l >= 0 and (s[l] != '#' or s[l + 1] != '#'):
        l -= 1
    l += 2 - int(l == -1)
    while r < n and (s[r - 1] != '#' or s[r] != '#'):
        r += 1
    r -= 2 - int(r == n)
    for i in range(l, r - 1):
        if s[i] == '.' and s[i + 1] == '.' and s[i + 2] == '.':
            print('Yes')
            break
    else:
        print('No')


Fixed submission:
n, a, b, c, d = map(int, input().split())
s = input()
if '##' in s[a-1:c] or '##' in s[b-1:d]:
    print('No')
elif c < d:
    print('Yes')
else:
    if '...' in s[b-2:d+1]:
        print('Yes')
    else:
        print('No')