In Night, describe the Kapos. How do the prisoners in Elie's block survive the New Year's selection? chapters 4-5

The
Kapos are the leaders of the organized prison work units, who typically choose their own workers
from the large selection of prisoners. Since the Kapos are essentially prisoners with
preferential treatment who report directly to SS officers, they often abuse the prisoners to
gain favor. Unfortunately for Eliezer and his father, their Kapo is a brutal man named Idek.
Throughout their time spent at Buna working in the electrical warehouse, both Eliezer and his
father suffer severe beatings from Idek.

On New Year's, the prisoners try
their best to pass through the selection process. Before the selection begins, the Block¤lteste
urges each prisoner to limber up in order to give their bodies more color, and to run "as
if you had the devil at your heels!" Eliezer and the other prisoners follow the advice and
sprint when their numbers are called. Fortunately, Eliezer and his father survive both
selections.