x=0tvb now,tvbnow,bttvb p. x) W/ }+ V; @
where by( R3 A8 c% U+ M
0 = x * 0
& ?. I2 {9 h Q9 O) W4 O' }tvb now,tvbnow,bttvb= 01 _4 r2 m1 l: M1 h: F& c
( ?# L0 S5 c x: g' t; r. X% g* qtvb now,tvbnow,bttvbso3 j8 p0 R* L+ E& G. e% Z
9 E! t; |! g8 N; Y' O# N! ctvb now,tvbnow,bttvb0+1=1 |