Azuma

1.
; _3 S4 O; M' Q4 S$ W2 [. |" o1-6 vs 7-12
6 X" n- u/ n( u. g- ~: ?if 1-6 = 7-12     13 is fake# X2 m( [- ~; e+ |* H% f

* y0 {- ?1 ]. u0 |- w& d, cif not
1 {7 n7 O  \4 s0 ?, H8 H/ S. w+ s" f* _% }! {. A
Weight the 2 time . H8 U, t& E( r+ W
( k6 ?, u: k% f  l, o3 _
Suppose 1-6> 7-12
) @0 n: l; ~6 l9 ^7 O, s) \3 h( F! E# }' R8 k9 U3 K
1-3 vs 4-6
$ u# c1 g6 _( O% b  {7 x9 z2 ~% z$ u' s
Then Weight the Third& v& X8 |3 Q, Q5 ]- o/ ?( T5 g
3.* U' V. U* _" T" m' L

0 q3 d) l- q. o2 gSuppose 4-6 > 1-3& z8 }$ C% Y3 V6 Q

: M) t1 e9 `7 W+ HJust like the first Step1 L( N1 c: g" O. f' B  s

. R8 l# C6 u& ]  h4 vs 5
- v3 P: [2 n; C% p/ @# j9 N
9 U. v7 O2 a. F1 sif 4=5 6 is the fake one ! N5 X! w2 Z8 x& y! G  w) e
) s0 B, F7 ^4 a5 M. e
if 4>5  4 is the fake one
6 ^; A0 h  @, L! M
2 J+ v# p) c/ x# r( I; Jand so on......................