Buggy python submission (verdict: Runtime Error):
import sys,collections
sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def S(): return input()

s = S()
gx,gy = Is()
xlis,ylis = [],[]
x,y = 0,0
h = 0
for e in s:
    if e == "F":
        if h == 0:
            x += 1 
        else:
            y += 1 
    else:
        if h == 0:
            if x:
                xlis.append(x) 
        else:
            if y:
                ylis.append(y)
        x,y = 0,0
        h = not h
if h == 0:
    if x:
        xlis.append(x) 
else:
    if y:
        ylis.append(y)
sx = xlis.pop(0) if len(xlis)>0 else 0
sy = 0
xmat = [[False]*16001 for i in range(len(xlis)+1)]
ymat = [[False]*16001 for i in range(len(ylis)+1)]
xmat[0][sx] = True
ymat[0][sy] = True
def xdp(i,d):
    if xmat[i][d]:
        return True
    if i == 0:
        return False
    xmat[i][d] = xdp(i-1,d + xlis[i-1]) or xdp(i-1,d - xlis[i-1])
    return xmat[i][d]
def ydp(i,d):
    if ymat[i][d]:
        return True
    if i == 0:
        return False
    ymat[i][d] = ydp(i-1,d + ylis[i-1]) or ydp(i-1,d - ylis[i-1])
    return xmat[i][d]
if xdp(len(xlis),gx) and ydp(len(ylis),gy):
    print("Yes")
else:
    print("No")


Fixed submission:
import sys,collections
sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def S(): return input()
 
s = S()
gx,gy = Is()
l = s.split("T")
for i in range(len(l)):
    l[i] = len(l[i])
xlis,ylis = l[::2],l[1::2]
sx = xlis.pop(0) if len(xlis)>0 else 0
sy = 0
xlis.sort(reverse=True)
ylis.sort(reverse=True)
def calc(start,goal,lis):
    p = start
    for e in lis:
        if p < goal:
            p += e
        else:
            p -= e
    return p == goal
if calc(sx,gx,xlis) and calc(sy,gy,ylis):
    print("Yes")
else:
    print("No")

Buggy python submission (verdict: Runtime Error):
import sys,collections
sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def S(): return input()

s = S()
gx,gy = Is()
xlis,ylis = [],[]
x,y = 0,0
h = 0
for e in s:
    if e == "F":
        if h == 0:
            x += 1 
        else:
            y += 1 
    else:
        if h == 0:
            if x:
                xlis.append(x) 
        else:
            if y:
                ylis.append(y)
        x,y = 0,0
        h = not h
if h == 0:
    if x:
        xlis.append(x) 
else:
    if y:
        ylis.append(y)
sx = xlis.pop(0) if len(xlis)>0 else 0
sy = 0
xmat = [[False]*16001 for i in range(len(xlis)+1)]
ymat = [[False]*16001 for i in range(len(ylis)+1)]
xmat[0][sx] = True
ymat[0][sy] = True
def xdp(i,d):
    if xmat[i][d]:
        return True
    if i == 0:
        return False
    xmat[i][d] = xdp(i-1,d + lis[i-1]) or xdp(i-1,d - lis[i-1])
    return xmat[i][d]
def ydp(i,d):
    if ymat[i][d]:
        return True
    if i == 0:
        return False
    ymat[i][d] = ydp(i-1,d + lis[i-1]) or ydp(i-1,d - lis[i-1])
    return xmat[i][d]
if xdp(len(xlis),gx) and ydp(len(ylis),gy):
    print("Yes")
else:
    print("No")


Fixed submission:
import sys,collections
sys.setrecursionlimit(10**7)
def Is(): return [int(x) for x in sys.stdin.readline().split()]
def S(): return input()
 
s = S()
gx,gy = Is()
l = s.split("T")
for i in range(len(l)):
    l[i] = len(l[i])
xlis,ylis = l[::2],l[1::2]
sx = xlis.pop(0) if len(xlis)>0 else 0
sy = 0
xlis.sort(reverse=True)
ylis.sort(reverse=True)
def calc(start,goal,lis):
    p = start
    for e in lis:
        if p < goal:
            p += e
        else:
            p -= e
    return p == goal
if calc(sx,gx,xlis) and calc(sy,gy,ylis):
    print("Yes")
else:
    print("No")