You have been randomly and anonymously paired with another participant.
One of you will be selected at random to be participant A;
the other will be participant B.
You will learn whether you are participant A or B prior to making any
To start, participant A receives 100 points;
participant B receives
Participant A can send some or all of
his 100 points to participant B.
Before B receives this amount, it will be multiplied
by 3. Once B receives
the tripled amount he can decide to send some or all of it to