First I also understand problem wrong. I remade my
solution, but get wrong answer again :(
I think that Sample Input and Output very bad and
programmer cannot understand the problem completely.

Mr. goodbye boy or somebody! Can you say, does this answer
right for this input?

Input:
8
2 3
2 4
2 5
2 6
3 3
3 4
4 2
4 3
Output:
RT,
RT,
T,
B,
,
,
T,
.

If this is wrong, please say the right. Thanks.

i think it's wrong.
I THINK the right is
RT,
RT,
T,
B,
,
T,
,
.
BUT I'M NOT SURE.

> i think it's wrong.
> I THINK the right is
> RT,
> RT,
> T,
> B,
> ,
> T,
> ,
> .
> BUT I'M NOT SURE.

> > i think it's wrong.
> > I THINK the right is
> > RT,
> > RT,
> > T,
> > B,
> > ,
> > T,
> > ,
> > .
> > BUT I'M NOT SURE.

I Got the same result,but where is the first line with "2 3"?
And my program hasn't been accepted now, who can help me by
giving some more testing data?

I agree with it:
2 3
RT,
RT,
T,
B,
,
T,
,
.

RT,
RT,
T,
B,
,
T,
,
.
this anwer gives my AC program