Reservoir sampling, AKA deal. (in APL, at 110 baud, that main expression would have been something likeHAND 5?52
)
import random;print(min(
hand(deal(5,range(52)))
for vals,suits in [("A23456789TJQK", "CDHS")]
for hand in [lambda js: " ".join([
vals[v]+suits[s] for j in js
for s,v in [divmod(j,13)]])]
for resv in [lambda rs,xs,k: rs if not xs else
min([resv([r if i!=j else xs[0]
for i,r in enumerate(rs)],
xs[1:],k+1)
for j in [random.randint(0,k)]])]
for deal in [lambda n,xs:resv(xs[:n],xs[n:],n)]
))