Male 13 scheme: the first scheme: 4 quadruplets = 320; The second type: 5 triplets = 330; The third type: 3 triplets+1 quadruplet =278.

Female 1 1 Scheme: First, three quadruple rooms =240 Second, four triple rooms =264 Third, two quadruple rooms 1 triple room =226.

The third option: three quadruple rooms+four triple rooms is the most economical.