#include <bits/stdc++.h>
using namespace std;

//conversion
//------------------------------------------
inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

//math
//-------------------------------------------
template<class T> inline T sqr(T x) {return x*x;}

//typedef
//------------------------------------------
typedef long long LL;
typedef pair<int, int> PII;
typedef pair<LL,LL> PLL;
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<LL> VLL;
typedef vector<VLL> VVLL;
typedef vector<bool> VB;
typedef vector<VB> VVB;
typedef vector<double> VD;
typedef vector<VD> VVD;
typedef vector<string> VS;
typedef vector<VS> VVS;
typedef vector<char> VC;
typedef vector<VC> VVC;
typedef vector<PII> VPII;
typedef vector<PLL> VPLL;
typedef priority_queue<int> PQGI; //大きい順
typedef priority_queue<int, VI, greater<int>> PQLI;
typedef priority_queue<PII> PQGP;
typedef priority_queue<PII, VPII, greater<int>> PQLP;

//container util
//------------------------------------------
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(),(a).rend()
#define EB emplace_back
#define PB push_back
#define PF push_front
#define POB pop_back
#define POF pop_front
#define MP make_pair
#define SZ(a) int((a).size())
#define SQ(a) ((a)*(a))
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())
#define SORTR(c) sort((c).rbegin(), (c).rend())
#define LB lower_bound
#define UB upper_bound
#define NEXP next_permutation
#define FI first
#define SE second
#define Vmin(a) *min_element((a).begin(),(a).end())
#define Vmax(a) *max_element((a).begin(),(a).end())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define FORR(i,a,b) for(int i = (b-1);i>=a;i--)
#define REPR(i,n) FORR(i,0,n)
#define BFOR(bit,a,b) for(int bit = (a); bit < (1<<(b)); ++bit)
#define BREP(bit,n) BFOR(bit,0,n)

//constant
//--------------------------------------------
const double EPS = 1e-10;
const double PI  = acos(-1.0);
const int INF = INT_MAX/2;
const LL LINF = LLONG_MAX/3;
const int RINF = INT_MIN/2;
const LL RLINF = LLONG_MIN/3;
const LL MOD = 1e9+7;
const LL MODD = 998244353;
const int MAX = 510000;

inline bool Eq(double a, double b) { return fabs(b - a) < EPS; }

//other
//-------------------------------------------
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (b<a) { a=b; return 1; } return 0; }

#define COUT(x) cout << (x) << endl
#define COUT2(x,y) cout << (x) << " " << (y) << endl
#define COUT3(x,y,z) cout << (x) << " " << (y) << " " << (z) << endl
#define PR(x) cout << (x)
#define ENDL cout << endl
#define SPACE cout << " "
#define BC(x) __builtin_popcountll(x)

void cYes(){ COUT("Yes");exit(0); }
void cNo(){ COUT("No");exit(0); }
void cYES(){ COUT("YES");exit(0); }
void cNO(){ COUT("NO");exit(0); }
void cyes(){ COUT("yes");exit(0); }
void cno(){ COUT("no");exit(0); }
void cMINU(){ COUT(-1);exit(0); }
void cZERO(){ COUT(0);exit(0); }

VI dx = {1,0,-1,0,1,1,-1,-1};
VI dy = {0,1,0,-1,1,-1,1,-1};
VC dc = {'R','D','L','U'};
VS ds = {"R","D","L","U","RD","RU","LD","LU"};

LL Gcd(LL a, LL b) {return __gcd(a,b);}
LL Lcm(LL a, LL b) {return a/Gcd(a,b)*b;}

LL ModPow(LL A, LL N, LL M){
  LL res = 1;
  while(N>0){
    if(N&1) res = res * A % M;
    A = A * A % M;
    N >>= 1;
  }
  return res;
}


template<class T> void VCout(vector<T> &v){
  int N = SZ(v);
  REP(i,N){
    cout << v.at(i);
    if(i == N-1) cout << endl;
    else cout << " ";
  }
  return;
}



int main() {

  cin.tie(0);
  ios::sync_with_stdio(false);
  cout << fixed << setprecision(12);

  string s; cin >> s;
  int x,y; cin >> x >> y;
  int n = SZ(s);
  s += 'q';
  VI a;
  int t = 1;
  if(s.at(0) == 'T') a.EB(0);
  REP(i,n){
    if(s.at(i) == s.at(i+1))t++;
    else{
      a.EB(t);
      t = 1;
    }
  }
  if(s.at(n-1)=='F') a.EB(0);
  int m = SZ(a);
  int N = 2*n+3;
  VVB dpx(m,VB(N,false)),dpy(m,VB(N,false));
  dpx.at(0).at(n+a.at(0)) = true;
  dpy.at(0).at(n) = true;

  int turn = a.at(1)%2;
  FOR(i,2,m){
    REP(j,N){
      if(turn == 0){
        if(dpx.at(i-2).at(j)){
          if(j+a.at(i)<N) dpx.at(i).at(j+a.at(i)) = true;
          if(j-a.at(i)>=0) dpx.at(i).at(j-a.at(i)) = true;
        }
        if(dpy.at(i-2).at(j))dpy.at(i).at(j) = true;

      }else{
        if(dpy.at(i-2).at(j)){
          if(j+a.at(i)<N) dpy.at(i).at(j+a.at(i)) = true;
          if(j-a.at(i)>=0) dpy.at(i).at(j-a.at(i)) = true;
        }
        if(dpx.at(i-2).at(j))dpx.at(i).at(j) = true;
      }
    }

    turn += a.at(++i)%2;
    turn %= 2;
  }
  if(dpx.at(m-2).at(x+n)&&dpy.at(m-2).at(y+n)) COUT("Yes");
  else COUT("No");

  return 0;
}


Measured memory_bytes: 32384