Concentration camps were a terrible place. Most people who were put into concentration camps did not survive. Everything was terrible about the camps including the journey to the camps and the living conditions of the camps.
First of all the journey to the camps people were packed into cattle cars. There was so many people packed into a cattle car they could not sit down or lay down. They would stand packed into these cattle cars for multiple days sometimes for up to two weeks. The only time they would feed them is they would throw a loaf of bread in for the whole cattle car every couple days.
Secondly if someone survived the journey to the camps as soon as you got off the cattle cars you would be separated to who would