OJ Board

Hello.
Can someone who get AC tell me answer of this test.
1
1 10000000
Thanks.

What is answer for this inout

1
IF
IF
IF
IF
IF
IF
IF
IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
IF
IF
IF
IF
IF
IF
IF
IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE
END_IF
ELSE ...

I'm getting this program WA WA and WA.
I want just some tests.I want to know is answer always even or 1 can answer be 0.
Please give some tests.It seems ease but WA.

Somebody can give hint how to solve this problem.I think it must be solved using DP or ?(I see that people are using too much memory).
Some hint please.

Hello.Can somebody tell me how to solve this problem.
I find formula for SOD.I find formula for CSOD too but it takes N operations.I do it another way and came up to the problem of finding sum of reminders 1 to n.
Please help me give some hint.

Thanks Dreamer#1 I solve it.

Thanks Mf for reply.
Can you give me output for this tests. Thanks.

Hello.
Can you give me output for these tests please.
Input Thanks.

Hello.
I'm trying to solve this problem.Can anyone give some hint how to solve it.
Thanks.