program chasing;
Uses Math;
 
var
     Bs, Bx, By, Ds, Dx, Dy : LongInt;
     dir                       : Char;
     T : real;
begin
 
   (* assign(input,  'input.txt');  reset(input);
    assign(output, 'output.txt'); rewrite(output);*)
 
 
    ReadLn(Dx, Dy, Ds);
 
    ReadLn(Bx, By, Bs);
 
    ReadLn(dir);
 
    T := 0;
 
   if (dir='D') or (dir='L')  then Bs:=-Bs;
   if (Dx<Bx) and (Ds<Bs) and (dir='R') then T:=-1
                                        else if (Dx>Bx) and (Ds<Bs) and (dir='L') then T:=-1
                                                else if   (Dy>By) and (Ds<Bs) and (dir='D') then T:=-1
                                                    else if (Dy<By) and (Ds<Bs) and (dir='U') then T:=-1
                                                         else T:=((abs(Dx-Bx) + abs(Dy-By)) / (abs (Ds+Bs)));
 
   WriteLn(ceil(T));
 
end.

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Uprogram chasing;
Uses Math;

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

    assign(input,  'input.txt');  reset(input);
    assign(output, 'output.txt'); rewrite(output);


    ReadLn(Dx, Dy, Ds);

    ReadLn(Bx, By, Bs);

    ReadLn(dir);

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