FIRST STEP :
A ball with an alphabet from A to W are drawn out , to decide the postion of upcoming number to be. For example, if B is drawn, which means the upcoming number set is for position B
SECOND STEP :
A ball with a number is drawn from each D2, D3, D4, D5 machines subsequently, to form a number combination. For example, if D2 drawn 8, D3 drawn 8, D4 drawn 8, D5 drawn 8, so the number combination is 8888.
THIRD STEP :
3 balls out of 13 balls with alphabet of A to M will be drawn out, to decide the 3rd, 2nd, and 1st prize. For example, if G is drawn for the first ball in Machine D6, the number combination of G will be the 3rd Prize.