64seconds
! I; D" d: o# o* p( @+ n N4 n, n @( ~tvb now,tvbnow,bttvb o- e3 h, v2 Y% y: M6 h: [# H$ x$ F
1 to 4 have 3floors = 48 sec
$ T, _" X. F3 D/ O3 \) i- r/ aavg. 48/3 = 16sectvb now,tvbnow,bttvb6 Z* M. W0 }2 G5 ]0 H) T" S5 H
w' \, t" m. v4 to 8 have 4floors = 16x4
/ R9 @, _3 m, q* gtvb now,tvbnow,bttvb= 64secs |