program 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.
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