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.
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