public static void main ( String [ ] $ ) {
  String v = s . next ( ) ;
  int x = gInt ( ) , y = gInt ( ) ;
  ArrayList < Integer > dx = new ArrayList < > ( ) , dy = new ArrayList < > ( ) ;
  boolean dir = true ;
  int d = 0 ;
  for ( int i = 0 ;
  i < v . length ( ) ;
  i ++ ) {
    if ( v . charAt ( i ) == 'T' ) {
      ( dir ? dx : dy ) . add ( d ) ;
      d = 0 ;
      dir ^= true ;
    }
    else {
      d ++ ;
    }
  }
  ( dir ? dx : dy ) . add ( d ) ;
  x -= dx . remove ( 0 ) ;
  System . out . println ( dp ( dx , x ) && dp ( dy , y ) ? "Yes" : "No" ) ;
}

public static void main ( String [ ] $ ) { String v = s . next ( ) ; int x = gInt ( ) , y = gInt ( ) ; ArrayList < Integer > dx = new ArrayList < > ( ) , dy = new ArrayList < > ( ) ; boolean dir = true ; int d = 0 ; for ( int i = 0 ; i < v . length ( ) ; i ++ ) { if ( v . charAt ( i ) == ' T ' ) { ( dir ? dx : dy ) . add ( d ) ; d = 0 ; dir ^= true ; } else { d ++ ; } } ( dir ? dx : dy ) . add ( d ) ; x -= dx . remove ( 0 ) ; System . out . println ( dp ( dx , x ) && dp ( dy , y ) ? " Yes " : " No " ) ; }
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