The international olympic committee consists of 55 members and needs to decide on the host city of the next summer games. There are five candidate cities: Berlin (B), Doha (D), Paris (P), Rome (R), and Tokyo (T). The individual preferences are: 18 members have ranking RP DBT, 12 members have ranking T DP BR, 10 members have ranking BT DP R, 9 members have ranking P BDT R, 4 members have ranking DT P BR, and 2 members have ranking DBP T R