program chasing;
Uses Math;

var
     Bs, Bx, By, Ds, Dx, Dy, T,  dist   : Longint;
     dir : Char;
     tdog,spostpall,nuovacoordpall : real;
begin

   
    ReadLn(Dx, Dy, Ds);

    ReadLn(Bx, By, Bs);

    ReadLn(dir);

    T := 0; 
    if dir='R' then T:=ceil((abs(Dx-Bx)+abs(Dy-By))/(abs(Ds-Bs)));
                  
    if dir='L' then T:=ceil((abs(Dx-Bx)+abs(Dy-By))/(abs(Ds+Bs)));
                  
    
  writeln(T);
end.