Buggy python submission (verdict: Time Limit Exceeded):
def search(keys,dic,now,sum_):
    if sum_ < 0:
        return -1
    elif now==len(keys):
        if sum_==0:
            return True
        else:
            return 0
    k=keys[now]
    for i in range(dic[k]+1):
        res=search(keys,dic,now+1,sum_-2*i*k)
        if res == 0:
            continue
        elif res==-1:
            break
        else:
            return True
            
    return 0

s=input()+'T'
x,y=list(map(int,input().split()))
xlist=[0 for _ in range(8000)]
ylist=[0 for _ in range(8000)]
flag='x+'
ini=0
tmp=0
xsum=0
ysum=0
for c in s:
    if c =='F':
        tmp+=1
    else:
        if flag=='x':
            xlist[tmp]+=1
            xsum+=tmp
        elif flag=='y':
            ylist[tmp]+=1
            ysum+=tmp
        else:
            ini=tmp
        tmp=0
        if flag=='y':
            flag='x'
        else:
            flag='y'
xlist[0]=0
ylist[0]=0
xkey=[]
ykey=[]
for i in range(8000):
    if xlist[i]>0:
        xkey.append(i)
    if ylist[i]>0:
        ykey.append(i)
xkey.reverse()
ykey.reverse()

if search(xkey,xlist,0,xsum-x+ini)==1 and search(ykey,ylist,0,ysum-y)==1:
    print('Yes')
else:
    print('No')

Fixed submission:
s=input()+'TE'
x,y=list(map(int,input().split()))

ini = s.find('T')
s=s[ini+1:]

is_y=1
point=[set([ini]),set([0])]

while len(s)>1:
    tmp=s.find('T')
    if tmp != 0:
        set_=set()
        for z in point[is_y]:
            set_.add(z+tmp)
            set_.add(z-tmp)
        point[is_y]=set_
    is_y+=1
    is_y%=2
    s=s[tmp+1:]

if x in point[0] and y in point[1]:
    print('Yes')
else:
    print('No')

Buggy python submission (verdict: Runtime Error):
def search(keys,dic,now,goal):
    if now==len(keys):
        if goal==0:
            return True
        else:
            return False
    k=keys[now]
    for i in range(dic[k]+1):
        if search(keys,dic,now+1,goal-k*i+k*(dic[k]-i)):
            return True
    return False

s=input()+'T'
x,y=list(map(int,input().split()))
xlist=[0 for _ in range(8000)]
ylist=[0 for _ in range(8000)]
flag='x+'
ini=0
tmp=0
for c in s:
    if c =='F':
        tmp+=1
    else:
        if flag=='x':
            xlist[tmp]+=1
        elif flag=='y':
            ylist[tmp]+=1
        else:
            ini=tmp
        tmp=0
        if flag=='y':
            flag='x'
        else:
            flag='y'
xlist[0]=0
ylist[0]=0
xkey=[]
ykey=[]
for i in range(8000):
    if xlist[i]>0:
        xkey.append(i)
    if ylist[i]>0:
        ykey.append(i)
xkey.inverse()
ykey.inverse()
if search(xkey,xlist,0,x-ini) and search(ykey,xlist,0,y):
    print('Yes')
else:
    print('No')


Fixed submission:
s=input()+'TE'
x,y=list(map(int,input().split()))

ini = s.find('T')
s=s[ini+1:]

is_y=1
point=[set([ini]),set([0])]

while len(s)>1:
    tmp=s.find('T')
    if tmp != 0:
        set_=set()
        for z in point[is_y]:
            set_.add(z+tmp)
            set_.add(z-tmp)
        point[is_y]=set_
    is_y+=1
    is_y%=2
    s=s[tmp+1:]

if x in point[0] and y in point[1]:
    print('Yes')
else:
    print('No')

Buggy python submission (verdict: Time Limit Exceeded):
def search(keys,dic,now,goal):
    if len(keys)==now:
        if goal==0:
            return True
        else:
            return False
    k=keys[now]
    for i in range(dic[k]+1):
        if search(keys,dic,now+1,goal-k*i+k*(dic[k]-i)):
            return True
    return False

s=input()+'T'
x,y=list(map(int,input().split()))
xdic={}
ydic={}

flag='x+'
ini=0
tmp=0
for c in s:
    if c =='F':
        tmp+=1
    else:
        if flag=='x':
            if xdic.get(tmp,0)==0:
                xdic[tmp]=1
            else:
                xdic[tmp]+=1
        elif flag=='y':
            if ydic.get(tmp,0)==0:
                ydic[tmp]=1
            else:
                ydic[tmp]+=1
        else:
            ini=tmp
        tmp=0
        if flag=='y':
            flag='x'
        else:
            flag='y'
if xdic.get(0,0)!=0:
    xdic.pop(0)
if ydic.get(0,0)!=0:
    ydic.pop(0)
if search(list(xdic.keys()),xdic,0,x-ini) and search(list(ydic.keys()),ydic,0,y):
    print('Yes')
else:
    print('No')

Fixed submission:
s=input()+'TE'
x,y=list(map(int,input().split()))

ini = s.find('T')
s=s[ini+1:]

is_y=1
point=[set([ini]),set([0])]

while len(s)>1:
    tmp=s.find('T')
    if tmp != 0:
        set_=set()
        for z in point[is_y]:
            set_.add(z+tmp)
            set_.add(z-tmp)
        point[is_y]=set_
    is_y+=1
    is_y%=2
    s=s[tmp+1:]

if x in point[0] and y in point[1]:
    print('Yes')
else:
    print('No')