super easy~!
0 z- N, f. s! v! V) [6 ^tvb now,tvbnow,bttvb1st: 6:6
8 U6 n- k& \+ i+ ?6 G1 Atvb now,tvbnow,bttvb2nd: 3:3tvb now,tvbnow,bttvb" T0 O/ U2 x8 O
3rd: 1:1
' u$ l' L4 D+ x _tvb now,tvbnow,bttvbif the last two is the same, then the extra one is the heavier |